過程 38.1. ip tunnel IP隧道配置步驟

1. server 1

   modprobe ipip
   ip tunnel add mytun mode ipip remote 220.201.35.11 local 211.100.37.167 ttl 255
   ifconfig mytun 10.42.1.1
   route add -net 10.42.1.0/24 dev mytun
   				

2. server 2

   modprobe ipip
   ip tunnel add mytun mode ipip remote 211.100.37.167 local 220.201.35.11 ttl 255
   ifconfig mytun 10.42.1.2
   route add -net 10.42.1.0/24 dev mytun
   				

3. nat

   /sbin/iptables -t nat -A POSTROUTING -s 10.42.1.0/24 -j MASQUERADE
   /sbin/iptables -t nat -A POSTROUTING -s 211.100.37.0/24 -j MASQUERADE