sudo iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth0 -j MASQUERADE
sudo iptables -I FORWARD -p tcp --syn -i ppp+ -j TCPMSS --set-mss 1396
ppp0 Link encap:Point-to-Point Protocol
inet addr:192.168.0.1 P-t-P:192.168.0.235 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1396 Metric:1
RX packets:14295 errors:0 dropped:0 overruns:0 frame:0
TX packets:12560 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:1429603 (1.4 MB) TX bytes:5145792 (5.1 MB)