Cisco VPN3030 Lan to lan NAT

Apr 27, 2005 0 Replies

Setup: ClientA -- NetA -- VPN3030 ....@.... FW-1NG -- NetB -- Server



Desc: ClientA on NetA (10.0.0.0/8) needs access NetB Server (Host=172.16.0.1) Via Lan to Lan tunnel set up between Cisco VPN3030 and a Checkpoint FW-1 NG.



Problem: NetB Server (Host=172.16.0.1) subnet is also routed elsewhere on NetA. Also NetA subnet is routed locally on NetB I need "one-sided" NAT



Here is what I have done:


- Reserved an IP from local pool in VPN3030 IP=192.168.100.100



- Create L2L with Peer for FW-1, PSK, Local network=192.168.100.100 /32 Remote=172.16.0.1/32



- Create L2L-NAT rule and enabled it: Source=10.0.0.0/8:Trans=192.168.100.100/32 Remote=172.16.0.1/32



- Add Static route towards public interface for 192.168.100.100/32


This does not work. My guess is that the NAT rule is wrong, or that the terms source:trans - Remote means different



that I imagine.



Is it true that the above NAT rule means that 10 gets its source translated into 192.168 ? And how must I interpritate the Remote ?



What I want to do, is to have ClientA on NetA (10.0.0.0/8) access the IP=192.168.100.100/32 and have this translated



into 172.16.0.1/32, and then put this into the tunnel towards FW1-NG



How can this be done in the VPN3030 ??


Please comment ...



Regards Martin Bilgrav


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