Reply To: [RESOLVED] NAT through VPN do not work

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#53971

ochambelant
Member

Hello buddy,

It’s still not working.

On my LAN B (192.168.0.0), when I try to reach 172.31.255.48 (real address is 192.168.2.48 on LAN A ) it’s going to Internet and not VPN00:

WARNING: the host 172.31.255.48 is not directly connected on the ETH00 LAN but is reachable via
the gateway 78.221.182.254: ARP is a Layer 2 Protocol and it cannot be routed by routers!

iptables -t nat -I POSTROUTING -o VPN00 -s 192.168.0.0/24 -d 172.20.0.0/24 -j NETMAP --to 172.31.255.0
iptables -t nat -I PREROUTING -i VPN00 -s 172.20.0.0/24/24 -d 172.31.255.0/24 -j NETMAP --to 192.168.0.0/24

ip route 172.20.0.0 255.255.255.0 via 1.1.1.1

But, 172.20.0.0 is NAT address from LAN A to reach 192.168.0.0 (LAN B).

– My LAN A (192.168.2.0) have to reach LAN B (192.168.0.0) through 172.20.0.0 which is NAT address.

– My LAN B (192.168.0.0) have to reach LAN A (192.168.2.0) through 172.31.255.0 which is NAT address.

Thanks again for your help !!!!