Differences

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--- tinctunnel [2020/07/16 07:57] – neoon
+++ tinctunnel [2020/07/16 12:16] – neoon
@@ Line 3: / Line 3: @@
 You should already have a Tinc tunnel running between these 2 machines:
 [[tincvpn_setup|TincVPN Setup]] \\
+To ensure that data is getting forwarded to the gateway and back (Client) \\
+  echo '100 TUNNEL' >> /etc/iproute2/rt_tables
+  ip rule add from 10.0.0.0/24 table TUNNEL
+  ip route add default via 10.0.0.1 table TUNNEL
+**Forward traffic to specific IP** (Server)
+  iptables -t nat -A POSTROUTING -s 10.0.0.0/24 ! -o tun+ -j SNAT --to-source xxx.xxx.xxx.xxx
+  iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
+  echo 1 > /proc/sys/net/ipv4/ip_forward
+**Forward traffic via default gateway** (Server)
+  iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+  iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
+  echo 1 > /proc/sys/net/ipv4/ip_forward
+**Test it**
+  curl http://www.cpanel.net/showip.cgi --interface 10.0.0.2
+Sources:\\ https://unix.stackexchange.com/questions/283801/iptables-forward-traffic-to-vpn-tunnel-if-open \\
+https://wiki.buyvm.net/doku.php/gre_tunnel