Linux主机pppoe拨号上网作为网关，部分网站打不开

echo 1 > /proc/sys/net/ipv4/ip_forward  # 或者修改 /etc/sysctl.conf
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1452

 

参考：

https://v2ex.com/t/940431

https://blog.csdn.net/victory08/article/details/51454030