Socat¶

На сервере¶

ip tuntap add dev tap0 mode tap
ip link set up dev tap0
socat UDP4-LISTEN:5555,bind=ext.ip.ad.dr,reuseaddr,fork TUN:10.1.1.1/30,iff-up,tun-name=tap0,tun-type=tap,iff-promisc &
sleep .1
ip addr flush dev tap0
brctl addif ilan0 tap0

На клиенте¶

ip tuntap add dev tap0 mode tap
ip link set up dev tap0
socat UDP:79.172.39.68:5555 TUN:10.1.1.0/30,iff-up,tun-name=tap0,tun-type=tap,iff-promisc &
sleep .1
ip addr flush dev tap0
brctl addif ilan0 tap0

На свежих версиях IP можно не назначать¶

socat UDP:79.172.39.68:5555 TUN:iff-up,tun-name=tap0,tun-type=tap,iff-promisc &
socat UDP4-LISTEN:5555,bind=ext.ip.ad.dr,reuseaddr,fork TUN:iff-up,tun-name=tap0,tun-type=tap,iff-promisc &