[strongSwan] Roadwarrior VPN same subnet

Dušan Ilić dusan at comhem.se
Sat Dec 21 05:36:45 CET 2019

---- Dušan Ilić wrote ----

>I have configured a roadwarrior ikev2 strongswan setup with DHCP.
>Everything works when I assign the dhcp scope a separate subnet, but when I assign IPs from the same subnet   it doesn't work. The strange thing is that the client can still connect and the gateway and other local clients can reach the VPN client with ping, but not the other way around. So the client responds to pings, but cannot itself ping or reach anything.
>I have checked iptables rules, routing tables and nat. Everything looks just fine. Also farp plugin is enabled. 
>Do anyone recognize this behavior, if not, how should I go about troubleshooting this?
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