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SSH Tunnel ​

Layer2 ​

bash
# 客户端执行
ssh -o Tunnel=ethernet -w 6:6 root@[server_ip]

# 服务端执行
ip link add br0 type bridge
ip link set tap6 master br0
ip address add 10.0.0.1/32 dev br0 # 客户端执行相同步骤，ip改为10.0.0.2
ip link set tap6 up
ip link set br0 up

# 测试arp包能否通过
arping -I br0 10.0.0.1

Layer3 ​

bash
ssh -o PermitLocalCommand=yes \
 -o LocalCommand="ip link set tun5 up && ip addr add 10.0.0.2/32 peer 10.0.0.1 dev tun5 " \
 -o TCPKeepAlive=yes \
 -w 5:5 root@[server_ip] \
 'ip link set tun5 up && ip addr add 10.0.0.1/32 peer 10.0.0.2 dev tun5' （Server端ssh需打开Tunnel和Rootlogin 配置）