I have a gre tunnel setup on a linux machine and all incoming traffic to the gre public ip hits the box as expected however when i do a ping/curl FROM the linux box it goes via it's default inteface i.e the isp router and not the tunnel how do i force all traffic to go via the tunnel? I've tried different default/static routes but none seem to work.
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 11.11.7.1 0.0.0.0 UG 100 0 0 enp2s0
11.11.7.0 0.0.0.0 255.255.255.0 U 0 0 0 enp2s0
11.11.7.1 0.0.0.0 255.255.255.255 UH 100 0 0 enp2s0
192.168.168.4 0.0.0.0 255.255.255.252 U 0 0 0 gre1
gre1 interface has ip 192.168.168.6 and the remote gre interface has ip 192.168.168.5
