[linux] foo over udp 隧道 - V2EX
jxwzhx

[linux] foo over udp 隧道

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  •   jxwzhx Apr 30, 2015 4347 views
    This topic created in 4038 days ago, the information mentioned may be changed or developed.

    3.18内核新加的,有人研究过怎么用吗?
    和原来的l2tp over udp有什么区别?

    iproute2对应版本加入了ip fou命令,然后ip link add 的时候可以指定encap封装方法为fou
    然而并没有试成功=。=
    求大神指导orz

    1 replies    2017-03-28 19:27:17 +08:00
    aphorism
        1
    aphorism  
       Mar 28, 2017
    服务端执行:

    modprobe fou

    export SERVER_IP=xx.xx.xx.xx SERVER_IF=ens3 CLIENT_IP=xx.xx.xx.xx

    ip fou add port 5353 ipproto 4

    iptables -t nat -A INPUT -i $SERVER_IF -p udp --dport 5353 -j SNAT --to-source 10.53.0.255:6464

    ip link add udptun0 type ipip local $SERVER_IP remote 10.53.0.255 encap fou encap-sport 5353 encap-dport 6464

    ip addr add 10.53.0.1 peer 10.53.0.2 dev udptun0

    ip link set udptun0 up

    iptables -t nat -A POSTROUTING -o $SERVER_IF -j MASQUERADE

    echo 1 > /proc/sys/net/ipv4/ip_forward


    客户端执行

    modprobe fou

    export SERVER_IP=xx.xx.xx.xx SERVER_IF=ens3 CLIENT_IP=xx.xx.xx.xx

    ip fou add port 6464 ipproto 4

    ip link add udptun0 type ipip local $CLIENT_IP remote $SERVER_IP encap fou encap-sport 6464 encap-dport 5353

    ip addr add 10.53.0.2 peer 10.53.0.1 dev udptun0

    ip link set udptun0 up

    然后在客户端执行命令测试是否连接上

    ping 10.53.0.1

    如果连接上了,就可以设置将除到服务器的路由使用目前路由外,所有其他的流量都通过 vpn 隧道通过

    ip route add $SERVER_IP via 你的网关 ip dev 你的默认网关上的网卡设备名

    ip route add 0.0.0.0/0 via 10.53.0.1 dev udptun0
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