--- nic.console.txt 1970-01-01 00:00:00.000000000 +0000 +++ OUTPUT/nic.console.txt 2019-08-26 13:26:47.090560679 +0000 @@ -0,0 +1,57 @@ +#!/bin/sh +nic # + iptables -t nat -F +nic # + iptables -F +nic # + # NAT +nic # + iptables -t nat -A POSTROUTING --source 192.1.3.0/24 --destination 0.0.0.0/0 -j SNAT --to-source 192.1.2.254 +nic # + # make sure that we never acidentially let ESP through. +nic # + iptables -N LOGDROP +nic # + iptables -A LOGDROP -j LOG +nic # + iptables -A LOGDROP -j DROP +nic # + iptables -I FORWARD 1 --proto 50 -j LOGDROP +nic # + #iptables -I FORWARD 2 --destination 192.0.2.0/24 -j LOGDROP +nic # + #iptables -I FORWARD 3 --source 192.0.2.0/24 -j LOGDROP +nic # + # route +nic # + #iptables -I INPUT 1 --destination 192.0.2.0/24 -j LOGDROP +nic # + # Display the table, so we know it is correct. +nic # + iptables -t nat -L -n +Chain PREROUTING (policy ACCEPT) +target prot opt source destination +Chain INPUT (policy ACCEPT) +target prot opt source destination +Chain OUTPUT (policy ACCEPT) +target prot opt source destination +Chain POSTROUTING (policy ACCEPT) +target prot opt source destination +SNAT all -- 192.1.3.0/24 0.0.0.0/0 to:192.1.2.254 +nic # + iptables -L -n +Chain INPUT (policy ACCEPT) +target prot opt source destination +Chain FORWARD (policy ACCEPT) +target prot opt source destination +LOGDROP esp -- 0.0.0.0/0 0.0.0.0/0 +Chain OUTPUT (policy ACCEPT) +target prot opt source destination +Chain LOGDROP (1 references) +target prot opt source destination +LOG all -- 0.0.0.0/0 0.0.0.0/0 LOG flags 0 level 4 +DROP all -- 0.0.0.0/0 0.0.0.0/0 +nic # + echo done. +done. +