Linux gre tunnel 端口,linux cent os 6.4 建立GRE tunnel

加载GRE模块modprobeip_gre创建Tunnel名为officeiptunneladdofficemodegreremote111.206.164.122local111.206.0.88ttl255iplinksetofficeup为tunnel增加IP地址ip

加载GRE模块

modprobe ip_gre

创建Tunnel 名为office

ip tunnel add

office  mode gre  remote 111.206.164.122  local 111.206.0.88 ttl 255

ip link set office

up

为tunnel 增加IP地址

ip add add

10.100.100.1/30  dev office

创建一个路由表，，表名为136

ip route add default via 103.246.132.61 table 136

创建一条策略,使本地源IP为192.168.50.0/24 向外访问时指定路由表136

ip rule add from

192.168.50.0/24 dev office table 136

增加静态路由指向tunnel

ip route add

103.246.135.0/24 via 10.100.100.2 dev office

ip route add

192.168.50.0/24 via 10.100.100.2 dev office

gre0: gre/ip  remote any

local any  ttl inherit  nopmtudisc

office: gre/ip  remote 111.206.164.122  local 111.206.0.88  ttl 255

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