OpenVPN on top of Ipsec - route conflict
Posted: Thu Jul 30, 2020 2:28 pm
I have a successful IPsec tunnel working using the Anyconnect client on Ubuntu 18.
I have an Open VPN connection sucessfully authenticated over the top of this IPSEC.
How ever my problem lies in the fact that although the OpenVPN client adds a route to send the tunnel related traffic down the tun0 dev, for some reason there is also a routed added above this that sends the same traffic down the already created cisco tunnel device.
Ip route:
~
A.B.C.D/X dev cscotun0 proto unspec scope link
A.B.C.D/X dev tun0 proto unspec scope link
~
I make an attempt to delete the link on the cisco tu device with:
"sudo ip route del A.B.C.D/X dev cscotun0"
which does not return any errors, but does not delete the route either !
Any ideas please how I can stop the cisco tun device from inheriting this route, or how to remove it ?
I have an Open VPN connection sucessfully authenticated over the top of this IPSEC.
How ever my problem lies in the fact that although the OpenVPN client adds a route to send the tunnel related traffic down the tun0 dev, for some reason there is also a routed added above this that sends the same traffic down the already created cisco tunnel device.
Ip route:
~
A.B.C.D/X dev cscotun0 proto unspec scope link
A.B.C.D/X dev tun0 proto unspec scope link
~
I make an attempt to delete the link on the cisco tu device with:
"sudo ip route del A.B.C.D/X dev cscotun0"
which does not return any errors, but does not delete the route either !
Any ideas please how I can stop the cisco tun device from inheriting this route, or how to remove it ?