首先,创建一个从第一个网卡 IP 到第二个网络的 IP 地址 $ ip route add 192.168.200.0/24 via 192.168.190.1 有了这条规则,所有经由 192.168.190.1 网卡进入到路由器的数据包(对于发出这些数据包的主机来说,该网卡就是它的网关),都会被重定向(redirect)至 192.168.200.0 网络 与此类似,还可以再添加一个相反...
To enable this basic routing function, you need to enable IP forwarding in the router’s kernel with this command: 然而,默认情况下,Linux内核不会自动将数据包从一个子网转发到另一个子网。 要启用这个基本的路由功能,您需要在路由器的内核中启用IP转发功能,可以使用以下命令: 代码语言:sh 复制 # sysctl...
In addition to enabling IP forwarding, you may also need to configure routing tables on the Linux system to ensure that packets are forwarded correctly. This can be done using the ip route command to add static routes or using a dynamic routing protocol such as OSPF or BGP. It is important...
例如:作为 IP 路由器。 PREROUTING(路由前链):在处理 IP 路由规则前(Pre-Routing)通过此链,并执行此链上关于 Pre-Routing 的 Rules。例如:DNAT。 POSTOUTING(路由后链):在处理 IP 路由规则后(Post-Routing)通过此链,并执行此链上关于 Post-Routing 的 Rules。例如:SNAT。 表(Tables) 表(Table)是面向应用...
net.ipv4.ip_forward = 1 用户还可以使用如下的命令查看当前系统是否支持包转发。 # sysctl net.ipv4.ip_forward http://pda158.iteye.com/blog/2173154 ROUTE(8) Linux Programmer’s Manual ROUTE(8) NAME route - show / manipulate the IP routing table ...
net.ipv4.ip_forward = 1 用户还可以使用如下的命令查看当前系统是否支持包转发。 # sysctl net.ipv4.ip_forward http://pda158.iteye.com/blog/2173154 ROUTE(8) Linux Programmer’s Manual ROUTE(8) NAME route - show / manipulate the IP routing table ...
要在Linux上创建一个VRF(Virtual Routing and Forwarding)命令,需要依赖于网络命令工具iproute2。下面是在Linux上使用iproute2创建VRF的步骤: 1. 确保你的系统已安装iproute2工具。你可以通过在终端中运行以下命令来检查是否安装了iproute2: “` ip -V
* Do any IP forwarding required. chk_addr() is expensive -- avoid it someday. * * This is inefficient. While finding out if it is for us we could also compute * the routing table entry. This is where the great unified cache theory comes ...
In our general scheme, IP can receive a datagram from TCP, UDP, ICMP, or IGMP (that is, a locally generated datagram) to send, or one that has been received from a network interface (a datagram to forward). The IP layer has a routing table in memory that it searches each time it ...
路由表(routing table)在内核源码中的另外一个叫法是转发信息库(Forwarding Information Base,FIB)。所以你在源码中看到的 fib 开头的定义基本上就是和路由表相关的功能。 其中路由表本身是用 struct fib_table 来表示的。 //file: include/net/ip_fib.h ...