# Generated by iptables-save v1.4.7 on Thu Nov 13 10:59:41 2014 *nat :PREROUTING ACCEPT [283:47558] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [2:148] #192.168.60.0/24 PPTP設置的分配地址段 #192.168.10.110 PPTP服務器內網IP #114.114.114.114 外網IP -A POSTROUTING -s 192.168.60.0/24 -j SNAT --to-source 192.168.10.110 -A POSTROUTING -j MASQUERADE -A POSTROUTING -s 192.168.60.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 192.168.60.0/24 -o eth0 -j MASQUERADE -A POSTROUTING -s 192.168.60.0/24 -o eth0 -j SNAT --to-source 114.114.114.114 -A POSTROUTING -s 192.168.60.0/24 -o eth0 -j MASQUERADE COMMIT # Completed on Thu Nov 13 10:59:41 2014 # Generated by iptables-save v1.4.7 on Thu Nov 13 10:59:41 2014 *filter :INPUT ACCEPT [50:3240] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [26:2472] -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 1723 -j ACCEPT -A FORWARD -i ppp+ -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j TCPMSS --set-mss 1356 COMMIT # Completed on Thu Nov 13 10:59:41 2014 "/etc/sysconfig/iptables" 23L, 952C
搭建的話百度一大堆，按着操作就行了