Policy nat for L2L and external access

Hello

I'm running into an interesting question with a 506th PIX 6.3 (4)

I created a VPN with our central location and implemented a policy nat on the 506th NAT their local 192.168.1.0/24 IPs to 10.200.25.0/24. This NATing works very well except for servers that also provide a static external IP address. I made a few captures of packets and traffic is crossing the VPN as expected and what actually at the remote end, but the answers are nat would be on the 'outside' ip of the host instead of the NAT. political I can ping other hosts on the remote network very well from the central location, not just those who have a static external IP address.

Example:

10.10.7.1 is my central site and try to ping a server with an IP address of 10.200.25.11 through the VPN. The traffic leaves the site central, is encrypted and delivered the firewall remotely. The firewall remotely translated 10.200.25.11-> 192.168.1.11 (the REAL Server IP) and delivers the package and the server responds, but answers are nat would be its public ip address of 75.X.X.X instead of 10.200.25.11.

Any thoughs on how I can work around this problem?

Here are the relevant config:

permit for line of policy-nat access-list 1 ip 192.168.1.0 255.255.255.0 10.1.1.0 255.255.255.0

allowed for access policy-nat-list line 2 ip 192.168.1.0 255.255.255.0 10.1.2.0 255.255.255.0

allowed for line of policy-nat to access list 3 ip 192.168.1.0 255.255.255.0 10.10.7.0 255.255.255.0

list of access vpn-sheep allowed ip 192.168.1.0 255.255.255.0 192.168.2.0 255.255.255.0

list of access vpn-sheep allowed ip 192.168.1.0 255.255.255.0 172.16.100.0 255.255.255.0

list of access vpn-sheep allowed ip 192.168.1.0 255.255.255.0 10.100.11.0 255.255.255.0

NAT (inside) 0-list of access vpn-sheep

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

Global 1 interface (outside)

public static 75.x.x.x (indoor, outdoor) 192.168.1.11 netmask 255.255.255.255 0 0

public static 10.200.25.0 (inside, outside) - list of access policy-nat 0 0

Try to rearrange your static rules:

Do the static strategy, the first to be read by the pix

public static 10.200.25.0 (inside, outside) - list of access policy-nat 0 0

public static 75.x.x.x (indoor, outdoor) 192.168.1.11 netmask 255.255.255.255 0 0

See how it goes

Tags: Cisco Security

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