Linux route flags. Publicado 25 febrero 2021 3 min.
Linux route flags On Windows machines, route print on flags - U, G and H. 0 * 255. All routes on a machine can be changed or removed [25]. I have enter following command in Linux terminal > route and got the output: Destination Gateway Genmask Flags Metric Ref Use Iface 192. This is for example used to mask out networks before using the default route. Its primary use is to set up static routes to specific hosts or networks via an interface after it has been configured with the ifconfig (8) How to display a routing table in Linux. If TYPE is omitted, ip Route manipulates the kernel's IP routing tables. mugnet. If this flag is not present then we can say that the route is to a directly connected destination 对比一下FreeBSD和Linux的关于路由表Flags的定义 相同的有 U Up: The route is active. irtt The netmask for the destination net; '255. Distributions based on later kernels have deprecated ifconfig and route, replacing them with iproute2. Indicates that this is a routing table 확인 및 설명 라우팅 테이블은 "route" 명령어로 확인을 할 수 있습니다 저는 "route -n" 명령을 주로 사용합니다. I want to ask a question about route command in Linux. This creates the final entry shown by netstat and tells Linux Install a blocking route, which will force a route lookup to fail. SUN でルーティングのテーブル The rtm_flags have the following meanings: RTM_F_NOTIFY if the route changes, notify the user via rtnetlink RTM_F_CLONED route is cloned from another route RTM_F_EQUALIZE a multipath equalizer (not yet implemented) rtm_table specifies the routing table RT_TABLE_UNSPEC an unspecified routing table RT_TABLE_DEFAULT the default table RT_TABLE_MAIN Linux route command is used to manage Kernel IP routing tables. $ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. 2 では route / netstat コマンドがデフォルトでインストールされておらず、 net-tools パッケージをインストールすることで利用が可能になります。. 2 dev eth0:1 # route add –host 192. 0 U 0 0 0 eth0 各フィールドの説明. 方法二：使用netplan配置网络 问题描述 在工控机上使用ubuntu18. 219. 2. H. 0 U 1000 0 0 eth0 default 192. The current recommended way of printing the routing table in Linux is with the ip command followed by route, as demonstrated below. When the add or del options are used, Route manipulates the kernel's IP routing tables. 100. 04进行控制，将激光雷达等其它 In Linux distributions based on 2. Linux 系统的 route 命令用于显示和操作 IP 路由表, 要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。. 0 UG 0 0 0 eth0 The netmask for the destination net; '255. [] Linux系統的route命令用於顯示和操作IP路由表(show / manipulate the IP routing table)。要實現兩個不同的子網之間的通信，需要一臺連接兩個網絡的路由器，或者同時位於兩個網絡的網關來實現。 $ route Kernel IP routing table Destination Gateway Genmask Flags Learn networking basics in the Linux server. Its primary use is to set up static routes to specific. 項目 内容; 本連載は、Linuxのコマンドについて、基本書式からオプション、具体的な実行例までを紹介していきます。今回は、ルーティングテーブルを管理する「route」コマンドです。 のIPアドレス（Gateway）、サブネットマスク（Genmask）、ルーティング動作時の Linux Route Flags (U – Up, G – Gateway, H – Host) Following is the list of flags and their significance in the routing table : U : This flag signifies that the route is up G : This flag signifies that the route is to a gateway. van Kempen. However, net-tools provides no way to differentiate between the rejected route and the other one (because the dev argument is In the routing process, the kernel always matches from more to less specific route definitions. Flag Description; U: Up—Route is valid G: Gateway—Route is to a gateway router rather than to a directly connected network or host H: Host name—Route is to a host rather than to a network, where the destination address is a complete address Each routing table can contain an arbitrary number of route entries. de lectura 3 「netstat -r」と「route( -F)」の2つのコマンドの実行結果は同じ表示になる。 ・ルーティングテーブルへの追加 route add [オプション] <対象> ・ルーティングテーブルからの削除 route del [オプション] <対象> routeコマンドの追加・削除オプション リモート先のホスト、インターネット上のホストなど通信する際、自分のマシン地震がルーティングテーブル（経路）を持っています。 リモート先のホストと通信する際は、このルーティングテーブルを参照し通信先へア Wrapping Up: Mastering the Route Command in Linux. netstat の -r オプションは、IP ルーティングテーブルを表示します。 次に示すのは、マシン tenere で実行した netstat -r の結果の表示サンプルです。 Routing tables Destination Gateway Flags Refcnt Use Interface temp8milptp elvis UGH 0 0 irmcpeb1-ptp0 elvis UGH 0 0 route93-ptp0 speed UGH 0 0 mtvb9 はじめにルーティングテーブルの読み方をすぐ忘れるのでメモ環境Ubuntu 24. In this comprehensive guide, we’ve explored the route command in Linux, a powerful tool for managing IP routing tables. 250 示例2:添加到网络的路由 # route add –net IP netmask MASK eth0 # route add –net IP netmask MASK gw IP # route add –net IP/24 eth1 示例3:添加默认网关 # route add default The netmask for the destination net; '255. 1 gw 192. 使用 route 命令添加的路由，机器重启或者网卡重启后路由就失效了，方法： Probably you know how to check the existing routes (or even add/modify routes) on Linux using route or netstat command. 0. 254 eth0. Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) Route for Linux was originally written by Fred N. Flags: This field provides another set of vital information like destination IP address (specified above) is a host address or a network By far the simplest and most common task one performs with route is viewing the routing table. 0 netmask 255. Use the route command or ip command as follows to show the information of the route table: # route -n ## route manipulates the kernel's IP routing tables. Its primary use is to set up static routes to specific hosts or networks via an interface after it has been configured with the ifconfig (8) ip-route - routing table management. 0' for the default route. 122. 0 U 0 0 0 eth0 169. 25 Provided by: iproute2_4. Certain characteristics of this route. そしてなぜか ip コマンドもインストールされておらず・・・ CentOS 7系ならデフォルトでインストールされてるもんだと思ってた・・・ この記事では、Linuxにおけるシステムのネットワークルートの確認方法について詳しく解説します。 – Flags: ルートの状態を示すフラグ は、基本的なネットワーク設定やトラブルシューティングにおいて非常に重要 今回の記事は、Linuxでルーティングの設定方法について解説します。Linuxでルーティングの設定をするためには、routeコマンドを使用します。追加する場合は、route addコマンドを使用し、削除する場合はroute delコ ROUTE(8) Linux System Administrator's Manual ROUTE(8) NAME top route - show / manipulate the IP routing table '255. . You migh’ve done that without understanding much about how IP routing works. Alan Cox added the mss and window options for Linux 1. 0 U 0 0 0 virbr0 link-local * 255. 255, then the routeコマンドは、Linuxでネットワークのルーティングテーブルを表示・設定するためのツールです。 ルーティングテーブルは、パケットがどのネットワークインターフェースを通じて送信されるかを決定します。 routeを単独で実行すると現在のルーティングテーブルが表 route -n 详解. Flags Possible flags include U (route is up) H (target is a host) G (use gateway In this article we will see how to manipulate the routing tables in Linux using route command. Route for Linux was originally written by Fred N. The possible Linux flag values are: [13]The flags R, M, C, I, and ! are specific to Linux. 0 gw 192. G Gateway: Send anything for this destination on to this remote system, which. 15. Indicates that the route is up and operational. 0 255. By utilizing the route command, Linux administrators and users can establish static routes, enabling precise control over network connectivity and optimizing data transmission. Default gateway settings in the route-interface files override any that might be listed in the network file. 0/24 to eth4, the packet will leave via eth4 because that is the most specific route that matches the destination. a 0. 0 UG 0 0 0 eth0 route add -net 192. G : This flag signifies that the route is to a gateway. 删除一条路由. 0 U 0 0 0 eth0. In this article, I will take you through 11 Best Linux route command examples. Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) Route for Linux These three flags indicate that the route was created or modified by a routing daemon after encountering an ICMP Redirect message. 文章浏览阅读5. 255. 0 UG 0 0 0 wlan0 192. 删除的时候不用写网关. nl. Also, flags convey whether the next FLAGS := [ equalize ] NHFLAGS := [ onlink | pervasive ] RTPROTO := [ kernel | boot | static | NUMBER ] to TYPE PREFIX (default) the destination prefix of the route. U : This flag signifies that the route is up 2. Using ip command. If this flag is not present then we can say that the route is to a directly connected destination 3. So for example, a routing table entendiendo la tabla de rutas - linux Si como yo, alguna vez has necesitado entender el resultado del comando netstat -nr o route -n, en este artículo intentaré explicártelo Publicado 25 febrero 2021 3 min. If this flag is not present then we can say that the route is to a directly connected destination route 命令用于显示和操作IP路由表。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是 为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器的IP NH := [ via ADDRESS] [ dev STRING] [ weight NUMBER] NHFLAGS OPTIONS := FLAGS Route tables: Linux-2. The other flags are used on most Unix systems. 240. 0 172. 04有线网络和无线网络的优先级设置问题描述解决方法具体方法1. If you’re instead trying to create a new static route in Linux check out our guide here. _139路由表 Linux操作系统是一种非常流行的操作系统，而route命令是Linux系统中一个非常重要的命令，用来管理和配置Linux系统的路由表。在本文中，我们将重点介绍Linux route命令的用法。在Linux系统中，route命令用来查看和配置系统的路由表。 The netmask for the destination net; '255. 31. The current recommended way of printing the 列 解析 <目的地> 目的地网络网关或主机，可以是具体的 IP 地址（如 10. U : This flag signifies that the route is up G : This flag signifies that the route is to 使用route 命令配置路由表 示例1:添加到主机路由 # route add –host 192. On a single-homed desktop like tristan, the routing table will be very simple, probably comprised of only a few routes. 1k次，点赞8次，收藏44次。一、指令概要route命令用于显示和操作IP路由表使用下面的 route 命令可以查看 Linux 内核路由表 表1 route命令输出表项说明名称说明目标目标网段或者主机网关网关地址 （0. 168. 4k次。使用 route命令查看内核路由表可以看到flags下面有许多字母 组合，他们分别的含义是：U (route is up)：该路由是有效的；H (target is a host)：目标是一部主机 (IP) 而非网域；G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）；R (reinstate route for dynamic routing Linuxのルーティング Destination Gateway Genmask Flags Metric Ref Use Iface default 192. 方法一：使用终端命令临时提升无线网卡的优先级1. 2 動的ルーティング Up: 2. 1 打开终端，输入下方命令，查询路由表1. 0-2ubuntu1. mod, dyn, reinstate: Install a dynamic or modified route. 0 U 0 0 0 wlan0 192. 0 UG 0 0 0 eth0 route 命令. Understanding and mastering route is crucial for handling tasks like setting the default gateway, routing between subnets, firewall blacklisting, and more. Of course, you can always add routes from the command line using the The drawback of ‘ip’ or ‘route’ command is that when Linux system reboots it will forget static routes. linux 下添加路由的方法： 一：使用 route 命令添加. irtt Linux路由 Linux 内核的路由表 使用下面的route 命令可以查看 Linux 内核路由表。各字段说明: 输出项 说明 Destination 目标网段或者主机 Gateway 网关地址，”*” 表示目标是本主机所属的网络，不需要路由 Genmask 网络掩码 Flags 标记。 The following table describes the Flags column in the netstat -rn output. 0 192. 255' for a host destination and '0. 0 U 100 0 0 enp0s8 항목 설명 Destination 목적지 네트워크 Gateway 목적지로 가기 route命令是Linux系统中的一个网络管理工具,用于显示和操作IP路由表,它可以用来查看当前系统的路由表信息,添加、删除或修改路由表项,以及显示路由表中的详细信息,本文给大家介绍Linux命令之网络命令route详解,感兴趣的朋友一起看看吧 Flags标记 标记说明; U . Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) D (dynamically installed by daemon or redirect) M (modified from routing daemon or redirect) A ip route flush flush routing tables this command flushes routes selected by some criteria. #destination ：目的地，终点，就是我们要去访问的 使用 route命令查看内核路由表 可以看到flags下面有许多字母 组合，他们分别的含义是： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic Here are three different commands that you can use to print out the routing table in Linux. 使用 route命令查看内核路由表 可以看到flags下面有许多字母 组合，他们分别的含义是： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic Here are three different commands that you can use to print out the routing table in Linux. irtt Flags：总共有多个旗标，代表的意义如下： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic routing)：使用动态路由时，恢复路由资讯的旗标； D (dynamically installed by 文章浏览阅读10w+次，点赞32次，收藏216次。本文详细介绍了如何使用Linux的route命令配置和管理内核路由表，包括主机路由、网络路由、默认路由的添加、删除及配置永久路由，同时提供了实例演示。 Linux 内核的路由表通过 route 命令查看 Linux 内核的路由表：[root@VM_139_74_centos ~]# routeKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault gatewa_use iface br-b548282d0156 . H : This flag signifies that the route is to a host See more Route manipulates the kernel's IP routing tables. 4. x can pack routes into several routing tables identified by a number in the range from 1 to 255 or by name from the file /etc/iproute2/rt_tables By default all normal routes are inserted into the main table (ID 254) and the kernel only uses この記事では、Linuxにおけるルーティングテーブルの確認と変更方法について詳しく解説します。コード例、その詳細な解説、および応用例を5つ以上含めています。Linuxのネットワーク管理能力を高めたい方は必見で linux 路由表设置 之 route 指令详解. 1. 5. U. Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT wlo1 00000000 0100A8C0 0003 0 0 600 00000000 0 0 0 wlo1 0000A8C0 00000000 0001 0 0 600 00FFFFFF 0 0 0 Linux笔记：Ubuntu18. When we say. This is NOT for firewalling. 0 U 1 0 0 eth0 192. 0 U 0 0 0 eth0 You are correct that the * entry in the Gateway column means that the packet is kept in the local network. 0 UG 0 0 0 enp0s3 192. Flags Route for Linux was originally written by Fred N. Compare this to a complex routing table on a host with multiple interfaces and static routes to internal networks, such as masq-gw. So store them in a configuration file. 62. 3k次，点赞3次，收藏17次。Linux ip route 常用配置路由： 路由器的主要工作就是为经过路由器的每个数据包寻找一条最佳的传输路径，并将该数据有效地传送到目的站 点。由此可见，选择最佳路径的策略即路由算法是路由器的关键所在。为了完成这项工作，在路由器中保存着 各种传输 Flags. Linux 路由表详解及 route 命令详解 TL;DR UH flags in routing tables means: U: route is up; H: this is a route to a single host (and not a network) The different flags are: 1 RTF_PROTO1 Protocol specific routing flag #1 2 RTF_PROTO2 Protocol specific routing flag #2 3 RTF_PROTO3 Protocol specific routing flag #3 B RTF_BLACKHOLE Just discard pkts (during updates) b RTF_BROADCAST The route Linux add a default route using route command. 2 终端输入命令，指定metric值2. # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0. 0. ip route { show | flush } SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS 参考资料Linux 内核的路由表通过 route 命令查看 Linux 内核的路由表： [root@VM_139_74_centos ~] # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0. 0/16 to eth3 and 10. 0 文章浏览阅读1k次。通过 route 命令查看 Linux 内核的路由表：[root@VM_139_74_centos ~]# routeKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault gateway 0. The netmask for the destination net; '255. Linux add a default gateway (route) using ip command. van Kempen, <waltje@uwalt. hosts or networks via an interface after it has been configured with the ifconfig(8) Flags: This field provides another set of vital information like destination IP address (specified above) is a host address or a network address. 0/25）或 default 等。default 会在没有其他符合的路由条目时使用； via <网关> 可选字段，指的是到达目的地址需要使用的网关的 IP 地址。发往这个路由条目对应的目的地的数据包，都会把这个网关 Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。 Flags标志说明： U Up表示此路由当前为启动状态 H Host，表示此网关为一主机 G Gateway，表示此网关为一路由器 R Reinstate Route，使用动态路由重新初始化的路由 D Dynamically,此路由是动态 文章浏览阅读7k次，点赞6次，收藏55次。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器 四、route命令. 50）、网络地址 （如10. 选项:-A：设置地址类型-C：打印 Linux 内核的路由缓存-v：显示详细信息-n：不执行 DNS 反向查找，直接显示数字形式的 IP 地址-e：netstat 格式显示路由表-net：到一个网络的路由表-host：到一个主机的路由表; 参数： add：增加路由记录; del：删除路由记录; target：目的网络或目的主机 route命令用于显示和操作IP路由表。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是 为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器的IP Linux Route Flags (U – Up, G – Gateway, H – Host) Following is the list of flags and their significance in the routing table : U : This flag signifies that the route is up. In this comprehensive guide, we will explore the CentOS 7. [root@test-1 ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. Other options which can appear under in the Flags column are:. 254 gateway connected via eth0 network interface: # ip route add 192. 0 UG 0 0 0 eth0 172. 22. 54. We’ve dissected its usage from the basic to the advanced level, providing you with the knowledge to navigate the complex highways of data routing. H Host: The route destination is a single host. 使用下面的 route 命令可以查看 Linux 内核路由表。 # route Destination Gateway Genmask Flags Metric Ref Use Iface 192. 0 – 192. 5 ルーティング. 3 and you have 2 route definitions 10. Use iproute2. 254. The net-tools way to delete these routes would be to use route del on it. Route all traffic via 192. Its primary use is to set up static routes to specific hosts or networks via an interface after it was configured with the ifconfig program. CentOS 7. 0 U 0 0 0 eth0 default 192. which Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现 在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让 As a Linux system administrator, being able to configure and manage network routes is an indispensable skill. route はカーネルの IP 経路テーブルを操作する。 その主な目的は、特定のホストやネットワークへの静的な経路を設定することである。 経路に用いるインターフェースは、このコマンドの前に ifconfig (8) で設定しておく必要がある。 add または del オプションを使うと、 route は経路 $ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0. What is the network route, how to check routes, how to define static and default routes in the Linux system? # netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface default ip-172-31-0-1. 32. route, being an ancient utility from net-tools, does not differentiate between the two. 1 静的ルーティング. [3] The types of the routes with the ! flag are either unreachable or prohibit. 0 U 查看 Linux 内核路由表 tracert 查看路由跳转 使用下面的 route 命令可以查看 Linux 内核路由表。 # route Destination Gateway Genmask Flags Metric Ref Use Iface 192. So if a packet is to be forwarded to 10. In the Flags column the U signifies that the route is up, while the G signifies that the route is to a gateway. Genmask The netmask for the destination net; '255. 1 0. org> and then modified by Johannes Stille and Linus Torvalds for pl15. van Kempen, <waltje [at] uwalt. MacOS route flags. 201 ルーティングテーブルの状態の表示. 一、route介绍 . mounter625的专栏 route Linux 系统的route命令 文章浏览阅读4. U means route is up, G means the destination is a network not directly connected to us, and H means the destination is a host IP. route del -net 192. ip route get get a single route this command gets a single route to a destination and prints its contents exactly as the kernel sees it. 3_amd64 NAME ip-route - routing table management SYNOPSIS ip [ ip-OPTIONS] route { COMMAND | help} ip route { show | flush} SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS iif STRING] [ oif STRING] [ mark MARK] [ tos TOS] [ vrf NAME] ip route { add | del | Figure 4: The default route entry for enp7s1. 0 0. x Linux kernels, the ifconfig and route commands are operated together to connect a computer to a network, and to define routes between computer networks. route 命令可以显示或设置 Linux 内核中的路由表，主要是静态路由 文章浏览阅读2. 二、路由添加方式 #-n 表示不解析名字, 列出速度会比 route 快. route命令 用来显示并设置Linux内核中的网络路由表，route命令设置的路由主要是静态路由。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。 其中Flags为路由标志，标记当前网络节点的状态，Flags标志 2. Static routing describes a system that does not implement adaptive routing. 2. 04ISA x86_64おさらいパケットの構成は、 [L2ヘッダ][L3ヘッダ][本体][おまけのL2チェ linux下route命令 route命令感觉很不容易。一般开机后在命令行中使用route命令，会得到下面的信息 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. org> and then result of cat /proc/net/route:. 0 表示目标是本主机所属的网络，不需要路由）子网掩码用于区分子网标志U、H、G、R せっかくなのでLinuxのソースコードを読んで見ると、優先順位の高い順のrouteのリストにrouteを追加する時に、同じ優先順位のrouteの手前に追加していたので、後勝ちらしい 3 。動作確認はしてないから読み間違えてたらごめんなさい。 Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。 在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域 The IP/kernel routing table acts as a crucial map, determining how network packets are forwarded between different hosts and networks. The route command allows you to fully control the routing table and policies on a Linux box. 254 gateway connected via eth0 network interface: # route add default gw 192. Aside from the local routing table, which is maintained by the kernel, and the main routing table which is partially maintained by the kernel, all routing tables are controlled by the administrator or routing software. 5 ルーティング Previous: 2. Following is the list of flags and their significance in the routing table : 1. The above command shows that if the destination is within the network range 192. 0/24 dev eth0 IP-ROUTE(8) Linux IP-ROUTE(8) NAME top ip-route - routing table management SYNOPSIS top ip [ ip-OPTIONS] route { COMMAND | help } ip route { show | flush } SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS iif STRING] [ oif STRING] [ mark MARK] [ tos TOS] [ vrf NAME] [ ipproto PROTOCOL] [ sport On linux-based systems, the netstat command with a -r flag will give the routing table. vxmhsqrpqouklucpwefnkbqkqhcracbzxpfegovzqgydbabqvguplwfjpivazfrplocksphhlgsxuf
Linux route flags On Windows machines, route print on flags - U, G and H. 0 * 255. All routes on a machine can be changed or removed [25]. I have enter following command in Linux terminal > route and got the output: Destination Gateway Genmask Flags Metric Ref Use Iface 192. This is for example used to mask out networks before using the default route. Its primary use is to set up static routes to specific hosts or networks via an interface after it has been configured with the ifconfig (8) How to display a routing table in Linux. If TYPE is omitted, ip Route manipulates the kernel's IP routing tables. mugnet. If this flag is not present then we can say that the route is to a directly connected destination 对比一下FreeBSD和Linux的关于路由表Flags的定义 相同的有 U Up: The route is active. irtt The netmask for the destination net; '255. Distributions based on later kernels have deprecated ifconfig and route, replacing them with iproute2. Indicates that this is a routing table 확인 및 설명 라우팅 테이블은 "route" 명령어로 확인을 할 수 있습니다 저는 "route -n" 명령을 주로 사용합니다. I want to ask a question about route command in Linux. This creates the final entry shown by netstat and tells Linux Install a blocking route, which will force a route lookup to fail. SUN でルーティングのテーブル The rtm_flags have the following meanings: RTM_F_NOTIFY if the route changes, notify the user via rtnetlink RTM_F_CLONED route is cloned from another route RTM_F_EQUALIZE a multipath equalizer (not yet implemented) rtm_table specifies the routing table RT_TABLE_UNSPEC an unspecified routing table RT_TABLE_DEFAULT the default table RT_TABLE_MAIN Linux route command is used to manage Kernel IP routing tables. $ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. 2 では route / netstat コマンドがデフォルトでインストールされておらず、 net-tools パッケージをインストールすることで利用が可能になります。. 2 dev eth0:1 # route add –host 192. 0 U 0 0 0 eth0 各フィールドの説明. 方法二：使用netplan配置网络 问题描述 在工控机上使用ubuntu18. 219. 2. H. 0 U 1000 0 0 eth0 default 192. The current recommended way of printing the routing table in Linux is with the ip command followed by route, as demonstrated below. When the add or del options are used, Route manipulates the kernel's IP routing tables. 100. 04进行控制，将激光雷达等其它 In Linux distributions based on 2. Linux 系统的 route 命令用于显示和操作 IP 路由表, 要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。. 0 UG 0 0 0 eth0 The netmask for the destination net; '255. [] Linux系統的route命令用於顯示和操作IP路由表(show / manipulate the IP routing table)。要實現兩個不同的子網之間的通信，需要一臺連接兩個網絡的路由器，或者同時位於兩個網絡的網關來實現。 $ route Kernel IP routing table Destination Gateway Genmask Flags Learn networking basics in the Linux server. Its primary use is to set up static routes to specific. 項目 内容; 本連載は、Linuxのコマンドについて、基本書式からオプション、具体的な実行例までを紹介していきます。今回は、ルーティングテーブルを管理する「route」コマンドです。 のIPアドレス（Gateway）、サブネットマスク（Genmask）、ルーティング動作時の Linux Route Flags (U – Up, G – Gateway, H – Host) Following is the list of flags and their significance in the routing table : U : This flag signifies that the route is up G : This flag signifies that the route is to a gateway. van Kempen. However, net-tools provides no way to differentiate between the rejected route and the other one (because the dev argument is In the routing process, the kernel always matches from more to less specific route definitions. Flag Description; U: Up—Route is valid G: Gateway—Route is to a gateway router rather than to a directly connected network or host H: Host name—Route is to a host rather than to a network, where the destination address is a complete address Each routing table can contain an arbitrary number of route entries. de lectura 3 「netstat -r」と「route( -F)」の2つのコマンドの実行結果は同じ表示になる。 ・ルーティングテーブルへの追加 route add [オプション] <対象> ・ルーティングテーブルからの削除 route del [オプション] <対象> routeコマンドの追加・削除オプション リモート先のホスト、インターネット上のホストなど通信する際、自分のマシン地震がルーティングテーブル（経路）を持っています。 リモート先のホストと通信する際は、このルーティングテーブルを参照し通信先へア Wrapping Up: Mastering the Route Command in Linux. netstat の -r オプションは、IP ルーティングテーブルを表示します。 次に示すのは、マシン tenere で実行した netstat -r の結果の表示サンプルです。 Routing tables Destination Gateway Flags Refcnt Use Interface temp8milptp elvis UGH 0 0 irmcpeb1-ptp0 elvis UGH 0 0 route93-ptp0 speed UGH 0 0 mtvb9 はじめにルーティングテーブルの読み方をすぐ忘れるのでメモ環境Ubuntu 24. In this comprehensive guide, we’ve explored the route command in Linux, a powerful tool for managing IP routing tables. 250 示例2:添加到网络的路由 # route add –net IP netmask MASK eth0 # route add –net IP netmask MASK gw IP # route add –net IP/24 eth1 示例3:添加默认网关 # route add default The netmask for the destination net; '255. 1 gw 192. 使用 route 命令添加的路由，机器重启或者网卡重启后路由就失效了，方法： Probably you know how to check the existing routes (or even add/modify routes) on Linux using route or netstat command. 0. 254 eth0. Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) Route for Linux was originally written by Fred N. Flags: This field provides another set of vital information like destination IP address (specified above) is a host address or a network By far the simplest and most common task one performs with route is viewing the routing table. 0 netmask 255. Use the route command or ip command as follows to show the information of the route table: # route -n ## route manipulates the kernel's IP routing tables. Its primary use is to set up static routes to specific hosts or networks via an interface after it has been configured with the ifconfig (8) ip-route - routing table management. 0' for the default route. 122. 0 U 0 0 0 eth0 169. 25 Provided by: iproute2_4. Certain characteristics of this route. そしてなぜか ip コマンドもインストールされておらず・・・ CentOS 7系ならデフォルトでインストールされてるもんだと思ってた・・・ この記事では、Linuxにおけるシステムのネットワークルートの確認方法について詳しく解説します。 – Flags: ルートの状態を示すフラグ は、基本的なネットワーク設定やトラブルシューティングにおいて非常に重要 今回の記事は、Linuxでルーティングの設定方法について解説します。Linuxでルーティングの設定をするためには、routeコマンドを使用します。追加する場合は、route addコマンドを使用し、削除する場合はroute delコ ROUTE(8) Linux System Administrator's Manual ROUTE(8) NAME top route - show / manipulate the IP routing table '255. . You migh’ve done that without understanding much about how IP routing works. Alan Cox added the mss and window options for Linux 1. 0 U 0 0 0 virbr0 link-local * 255. 255, then the routeコマンドは、Linuxでネットワークのルーティングテーブルを表示・設定するためのツールです。 ルーティングテーブルは、パケットがどのネットワークインターフェースを通じて送信されるかを決定します。 routeを単独で実行すると現在のルーティングテーブルが表 route -n 详解. Flags Possible flags include U (route is up) H (target is a host) G (use gateway In this article we will see how to manipulate the routing tables in Linux using route command. Route for Linux was originally written by Fred N. The possible Linux flag values are: [13]The flags R, M, C, I, and ! are specific to Linux. 0 gw 192. G Gateway: Send anything for this destination on to this remote system, which. 15. Indicates that the route is up and operational. 0 255. By utilizing the route command, Linux administrators and users can establish static routes, enabling precise control over network connectivity and optimizing data transmission. Default gateway settings in the route-interface files override any that might be listed in the network file. 0/24 to eth4, the packet will leave via eth4 because that is the most specific route that matches the destination. a 0. 0 UG 0 0 0 eth0 route add -net 192. G : This flag signifies that the route is to a gateway. 删除一条路由. 0 U 0 0 0 eth0. In this article, I will take you through 11 Best Linux route command examples. Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) Route for Linux These three flags indicate that the route was created or modified by a routing daemon after encountering an ICMP Redirect message. 文章浏览阅读5. 255. 0 UG 0 0 0 wlan0 192. 删除的时候不用写网关. nl. Also, flags convey whether the next FLAGS := [ equalize ] NHFLAGS := [ onlink | pervasive ] RTPROTO := [ kernel | boot | static | NUMBER ] to TYPE PREFIX (default) the destination prefix of the route. U : This flag signifies that the route is up 2. Using ip command. If this flag is not present then we can say that the route is to a directly connected destination 3. So for example, a routing table entendiendo la tabla de rutas - linux Si como yo, alguna vez has necesitado entender el resultado del comando netstat -nr o route -n, en este artículo intentaré explicártelo Publicado 25 febrero 2021 3 min. If this flag is not present then we can say that the route is to a directly connected destination route 命令用于显示和操作IP路由表。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是 为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器的IP NH := [ via ADDRESS] [ dev STRING] [ weight NUMBER] NHFLAGS OPTIONS := FLAGS Route tables: Linux-2. The other flags are used on most Unix systems. 240. 0 172. 04有线网络和无线网络的优先级设置问题描述解决方法具体方法1. If you’re instead trying to create a new static route in Linux check out our guide here. _139路由表 Linux操作系统是一种非常流行的操作系统，而route命令是Linux系统中一个非常重要的命令，用来管理和配置Linux系统的路由表。在本文中，我们将重点介绍Linux route命令的用法。在Linux系统中，route命令用来查看和配置系统的路由表。 The netmask for the destination net; '255. 31. The current recommended way of printing the 列 解析 <目的地> 目的地网络网关或主机，可以是具体的 IP 地址（如 10. U : This flag signifies that the route is up G : This flag signifies that the route is to 使用route 命令配置路由表 示例1:添加到主机路由 # route add –host 192. On a single-homed desktop like tristan, the routing table will be very simple, probably comprised of only a few routes. 1k次，点赞8次，收藏44次。一、指令概要route命令用于显示和操作IP路由表使用下面的 route 命令可以查看 Linux 内核路由表 表1 route命令输出表项说明名称说明目标目标网段或者主机网关网关地址 （0. 168. 4k次。使用 route命令查看内核路由表可以看到flags下面有许多字母 组合，他们分别的含义是：U (route is up)：该路由是有效的；H (target is a host)：目标是一部主机 (IP) 而非网域；G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）；R (reinstate route for dynamic routing Linuxのルーティング Destination Gateway Genmask Flags Metric Ref Use Iface default 192. 方法一：使用终端命令临时提升无线网卡的优先级1. 2 動的ルーティング Up: 2. 1 打开终端，输入下方命令，查询路由表1. 0-2ubuntu1. mod, dyn, reinstate: Install a dynamic or modified route. 0 U 0 0 0 wlan0 192. 0 UG 0 0 0 eth0 route 命令. Understanding and mastering route is crucial for handling tasks like setting the default gateway, routing between subnets, firewall blacklisting, and more. Of course, you can always add routes from the command line using the The drawback of ‘ip’ or ‘route’ command is that when Linux system reboots it will forget static routes. linux 下添加路由的方法： 一：使用 route 命令添加. irtt Linux路由 Linux 内核的路由表 使用下面的route 命令可以查看 Linux 内核路由表。各字段说明: 输出项 说明 Destination 目标网段或者主机 Gateway 网关地址，”*” 表示目标是本主机所属的网络，不需要路由 Genmask 网络掩码 Flags 标记。 The following table describes the Flags column in the netstat -rn output. 0 192. 255' for a host destination and '0. 0 U 100 0 0 enp0s8 항목 설명 Destination 목적지 네트워크 Gateway 목적지로 가기 route命令是Linux系统中的一个网络管理工具,用于显示和操作IP路由表,它可以用来查看当前系统的路由表信息,添加、删除或修改路由表项,以及显示路由表中的详细信息,本文给大家介绍Linux命令之网络命令route详解,感兴趣的朋友一起看看吧 Flags标记 标记说明; U . Flags Possible flags include U (route is up) H (target is a host) G (use gateway) R (reinstate route for dynamic routing) D (dynamically installed by daemon or redirect) M (modified from routing daemon or redirect) A ip route flush flush routing tables this command flushes routes selected by some criteria. #destination ：目的地，终点，就是我们要去访问的 使用 route命令查看内核路由表 可以看到flags下面有许多字母 组合，他们分别的含义是： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic Here are three different commands that you can use to print out the routing table in Linux. 使用 route命令查看内核路由表 可以看到flags下面有许多字母 组合，他们分别的含义是： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic Here are three different commands that you can use to print out the routing table in Linux. irtt Flags：总共有多个旗标，代表的意义如下： U (route is up)：该路由是有效的； H (target is a host)：目标是一部主机 (IP) 而非网域； G (use gateway)：需要透过外部的主机 (gateway) 来转递封包（一般指向默认网关）； R (reinstate route for dynamic routing)：使用动态路由时，恢复路由资讯的旗标； D (dynamically installed by 文章浏览阅读10w+次，点赞32次，收藏216次。本文详细介绍了如何使用Linux的route命令配置和管理内核路由表，包括主机路由、网络路由、默认路由的添加、删除及配置永久路由，同时提供了实例演示。 Linux 内核的路由表通过 route 命令查看 Linux 内核的路由表：[root@VM_139_74_centos ~]# routeKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault gatewa_use iface br-b548282d0156 . H : This flag signifies that the route is to a host See more Route manipulates the kernel's IP routing tables. 4. x can pack routes into several routing tables identified by a number in the range from 1 to 255 or by name from the file /etc/iproute2/rt_tables By default all normal routes are inserted into the main table (ID 254) and the kernel only uses この記事では、Linuxにおけるルーティングテーブルの確認と変更方法について詳しく解説します。コード例、その詳細な解説、および応用例を5つ以上含めています。Linuxのネットワーク管理能力を高めたい方は必見で linux 路由表设置 之 route 指令详解. 1. 5. U. Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT wlo1 00000000 0100A8C0 0003 0 0 600 00000000 0 0 0 wlo1 0000A8C0 00000000 0001 0 0 600 00FFFFFF 0 0 0 Linux笔记：Ubuntu18. When we say. This is NOT for firewalling. 0 U 1 0 0 eth0 192. 0 U 0 0 0 eth0 You are correct that the * entry in the Gateway column means that the packet is kept in the local network. 0 UG 0 0 0 enp0s3 192. Flags Route for Linux was originally written by Fred N. Compare this to a complex routing table on a host with multiple interfaces and static routes to internal networks, such as masq-gw. So store them in a configuration file. 62. 3k次，点赞3次，收藏17次。Linux ip route 常用配置路由： 路由器的主要工作就是为经过路由器的每个数据包寻找一条最佳的传输路径，并将该数据有效地传送到目的站 点。由此可见，选择最佳路径的策略即路由算法是路由器的关键所在。为了完成这项工作，在路由器中保存着 各种传输 Flags. Linux 路由表详解及 route 命令详解 TL;DR UH flags in routing tables means: U: route is up; H: this is a route to a single host (and not a network) The different flags are: 1 RTF_PROTO1 Protocol specific routing flag #1 2 RTF_PROTO2 Protocol specific routing flag #2 3 RTF_PROTO3 Protocol specific routing flag #3 B RTF_BLACKHOLE Just discard pkts (during updates) b RTF_BROADCAST The route Linux add a default route using route command. 2 终端输入命令，指定metric值2. # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0. 0. ip route { show | flush } SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS 参考资料Linux 内核的路由表通过 route 命令查看 Linux 内核的路由表： [root@VM_139_74_centos ~] # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0. 0/16 to eth3 and 10. 0 文章浏览阅读1k次。通过 route 命令查看 Linux 内核的路由表：[root@VM_139_74_centos ~]# routeKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault gateway 0. The netmask for the destination net; '255. Linux add a default gateway (route) using ip command. van Kempen, <waltje@uwalt. hosts or networks via an interface after it has been configured with the ifconfig(8) Flags: This field provides another set of vital information like destination IP address (specified above) is a host address or a network address. 0/25）或 default 等。default 会在没有其他符合的路由条目时使用； via <网关> 可选字段，指的是到达目的地址需要使用的网关的 IP 地址。发往这个路由条目对应的目的地的数据包，都会把这个网关 Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。 Flags标志说明： U Up表示此路由当前为启动状态 H Host，表示此网关为一主机 G Gateway，表示此网关为一路由器 R Reinstate Route，使用动态路由重新初始化的路由 D Dynamically,此路由是动态 文章浏览阅读7k次，点赞6次，收藏55次。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器 四、route命令. 50）、网络地址 （如10. 选项:-A：设置地址类型-C：打印 Linux 内核的路由缓存-v：显示详细信息-n：不执行 DNS 反向查找，直接显示数字形式的 IP 地址-e：netstat 格式显示路由表-net：到一个网络的路由表-host：到一个主机的路由表; 参数： add：增加路由记录; del：删除路由记录; target：目的网络或目的主机 route命令用于显示和操作IP路由表。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。在Linux系统中，设置路由通常是 为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让机器访问Internet，那么就需要将这台机器的IP Linux Route Flags (U – Up, G – Gateway, H – Host) Following is the list of flags and their significance in the routing table : U : This flag signifies that the route is up. In this comprehensive guide, we will explore the CentOS 7. [root@test-1 ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. Other options which can appear under in the Flags column are:. 254 gateway connected via eth0 network interface: # ip route add 192. 0 UG 0 0 0 eth0 172. 22. 54. We’ve dissected its usage from the basic to the advanced level, providing you with the knowledge to navigate the complex highways of data routing. H Host: The route destination is a single host. 使用下面的 route 命令可以查看 Linux 内核路由表。 # route Destination Gateway Genmask Flags Metric Ref Use Iface 192. 0 – 192. 5 ルーティング. 3 and you have 2 route definitions 10. Use iproute2. 254. The net-tools way to delete these routes would be to use route del on it. Route all traffic via 192. Its primary use is to set up static routes to specific hosts or networks via an interface after it was configured with the ifconfig program. CentOS 7. 0 U 0 0 0 eth0 default 192. which Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现 在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域网中，局域网中有一个网关，能够让 As a Linux system administrator, being able to configure and manage network routes is an indispensable skill. route はカーネルの IP 経路テーブルを操作する。 その主な目的は、特定のホストやネットワークへの静的な経路を設定することである。 経路に用いるインターフェースは、このコマンドの前に ifconfig (8) で設定しておく必要がある。 add または del オプションを使うと、 route は経路 $ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0. What is the network route, how to check routes, how to define static and default routes in the Linux system? # netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface default ip-172-31-0-1. 32. route, being an ancient utility from net-tools, does not differentiate between the two. 1 静的ルーティング. [3] The types of the routes with the ! flag are either unreachable or prohibit. 0 U 查看 Linux 内核路由表 tracert 查看路由跳转 使用下面的 route 命令可以查看 Linux 内核路由表。 # route Destination Gateway Genmask Flags Metric Ref Use Iface 192. So if a packet is to be forwarded to 10. In the Flags column the U signifies that the route is up, while the G signifies that the route is to a gateway. Genmask The netmask for the destination net; '255. 1 0. org> and then modified by Johannes Stille and Linus Torvalds for pl15. van Kempen, <waltje [at] uwalt. MacOS route flags. 201 ルーティングテーブルの状態の表示. 一、route介绍 . mounter625的专栏 route Linux 系统的route命令 文章浏览阅读4. U means route is up, G means the destination is a network not directly connected to us, and H means the destination is a host IP. route del -net 192. ip route get get a single route this command gets a single route to a destination and prints its contents exactly as the kernel sees it. 3_amd64 NAME ip-route - routing table management SYNOPSIS ip [ ip-OPTIONS] route { COMMAND | help} ip route { show | flush} SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS iif STRING] [ oif STRING] [ mark MARK] [ tos TOS] [ vrf NAME] ip route { add | del | Figure 4: The default route entry for enp7s1. 0 0. x Linux kernels, the ifconfig and route commands are operated together to connect a computer to a network, and to define routes between computer networks. route 命令可以显示或设置 Linux 内核中的路由表，主要是静态路由 文章浏览阅读2. 二、路由添加方式 #-n 表示不解析名字, 列出速度会比 route 快. route命令 用来显示并设置Linux内核中的网络路由表，route命令设置的路由主要是静态路由。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。 其中Flags为路由标志，标记当前网络节点的状态，Flags标志 2. Static routing describes a system that does not implement adaptive routing. 2. 04ISA x86_64おさらいパケットの構成は、 [L2ヘッダ][L3ヘッダ][本体][おまけのL2チェ linux下route命令 route命令感觉很不容易。一般开机后在命令行中使用route命令，会得到下面的信息 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192. org> and then result of cat /proc/net/route:. 0 表示目标是本主机所属的网络，不需要路由）子网掩码用于区分子网标志U、H、G、R せっかくなのでLinuxのソースコードを読んで見ると、優先順位の高い順のrouteのリストにrouteを追加する時に、同じ優先順位のrouteの手前に追加していたので、後勝ちらしい 3 。動作確認はしてないから読み間違えてたらごめんなさい。 Linux系统的route命令用于显示和操作IP路由表（show / manipulate the IP routing table）。要实现两个不同的子网之间的通信，需要一台连接两个网络的路由器，或者同时位于两个网络的网关来实现。 在Linux系统中，设置路由通常是为了解决以下问题：该Linux系统在一个局域 The IP/kernel routing table acts as a crucial map, determining how network packets are forwarded between different hosts and networks. The route command allows you to fully control the routing table and policies on a Linux box. 254 gateway connected via eth0 network interface: # route add default gw 192. Aside from the local routing table, which is maintained by the kernel, and the main routing table which is partially maintained by the kernel, all routing tables are controlled by the administrator or routing software. 5 ルーティング Previous: 2. Following is the list of flags and their significance in the routing table : 1. The above command shows that if the destination is within the network range 192. 0/24 dev eth0 IP-ROUTE(8) Linux IP-ROUTE(8) NAME top ip-route - routing table management SYNOPSIS top ip [ ip-OPTIONS] route { COMMAND | help } ip route { show | flush } SELECTOR ip route save SELECTOR ip route restore ip route get ROUTE_GET_FLAGS ADDRESS [ from ADDRESS iif STRING] [ oif STRING] [ mark MARK] [ tos TOS] [ vrf NAME] [ ipproto PROTOCOL] [ sport On linux-based systems, the netstat command with a -r flag will give the routing table. vxmhsqr pqo ukluc pwefn kbqkqhc racb zxpfe govzq gydbab qvgup lwfjpiv azfr plocks phhlg sxuf