[Openswan Users] Multiple subnets through 1 tunnel

[Andy Van den Heede]

Hello,

I have a successful VPN tunnel between my local subnet 192.168.1.0/24 (Openswan device) and an external subnet 192.168.2.0/24 (Another device not managed by me).
At the other device there is also another subnet 172.16.2.0/24 active that I need to access through this tunnel.

How can I configure my device to route this also through this existent tunnel?

I did a test with following command:
ip route add 172.16.2.0/24 via 192.168.2.254 dev eth0 src 192.168.1.254

But I get this error:
RTNETLINK answers: Network is unreachable

Thanks in advice,
Andy Van den Heede

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