[strongSwan] how to connect two tunnel on the same gateway?

[Tu, Robin]

Hi, guys,

I have 2 laptop established ikev2 vpn to gateway moon.
Laptop1's  IP is  10.70.1.108 and Laptop2's IP is virtual IP 10.3.0.1
I can ping both laptop1 and laptop1 to gateway 192.168.58.1 without problem.
But how can I have laptop2 to be able to ping Laptop1's IP. It always fail.
I guess I only need to set up iptales in gateway. But how to set up it ?

Best Regards
Robin
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