linux 路由问题配置

linux 路由问题配置

ubuntu 系统

一：无法访问通网段下的某个地址

二：登录机器204.153

问题出在主机上，正常的路由是从网卡出去的，如上图204.154

153上有条208.0路由，掩码是240.0把路由搞到这条了

需要在153添加一条192.168.213.0/24 丢到物理网卡上

三：原因

ssl vpn用户连进来分配的ip就是213.x，213.1是vpn用户的网关

刚好那个208把213给包含进去了，所以就要单独写一条

192.168.208.0 0.0.0.0 255.255.240.0 U 0 0 0 br-497f38ab9518

四：解决

ip route add 192.168.213.0/24 via 192.168.204.111 dev eno1 metric 100

root@slurm3:~# route -n

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

0.0.0.0 192.168.204.111 0.0.0.0 UG 20101 0 0 eno1

169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 usb0

169.254.3.0 0.0.0.0 255.255.255.0 U 100 0 0 usb0

172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0

172.18.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-bdc6ab3a479d

172.19.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-bd00010cfc7e

172.26.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-293fd2ccd6ca

172.27.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-a22a62fb2765

172.28.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-2be76de1603f

172.29.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-377e74e04e87

172.30.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-ffb55a5f9b2f

172.31.0.0 0.0.0.0 255.255.0.0 U 0 0 0 br-f1330e471981

192.168.32.0 0.0.0.0 255.255.240.0 U 0 0 0 br-8fe4d7fdd7f3

192.168.48.0 0.0.0.0 255.255.240.0 U 0 0 0 br-e828f36e9dcd

192.168.160.0 0.0.0.0 255.255.240.0 U 0 0 0 br-23b320ebf8c2

192.168.176.0 0.0.0.0 255.255.240.0 U 0 0 0 br-3c0359be9a2d

192.168.204.0 0.0.0.0 255.255.255.0 U 101 0 0 eno1

192.168.208.0 0.0.0.0 255.255.240.0 U 0 0 0 br-497f38ab9518

192.168.213.0 192.168.204.111 255.255.255.0 UG 100 0 0 eno1

192.168.224.0 0.0.0.0 255.255.240.0 U 0 0 0 br-a902dc3b69d1

永久保存：

root@slurm3:~# cat /etc/netplan/01-network-manager-all.yaml

# Let NetworkManager manage all devices on this system

network:

version: 2

renderer: NetworkManager

ethernets:

eno1:

dhcp4: no

addresses:

- 192.168.204.153/24

gateway4: 192.168.204.111

nameservers:

addresses: [192.168.0.181]

routes:

- to: 192.168.213.0/24

via: 192.168.204.111

metric: 100

应用：

root@slurm3:~# vi /etc/netplan/01-network-manager-all.yaml

root@slurm3:~# netplan apply