I built a VPN between a PIX and a 8xx Router. A mail server is placed at the router side, so i insert a new nat.

ip nat inside source static w.x.y.x a.b.c.d

My mail server running properly, but it is unable to contact the network at the pix side.

This the tracert result from the mail server.

before

Tracing route to TSHOMESERVER [192.168.60.101]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.80.1

2 25 ms 23 ms 24 ms TSHOMESERVER [192.168.60.101]

Trace complete.

after

Tracing route to 192.168.60.101 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.80.1

2 1 ms 1 ms 1 ms 210.17.139.161

3 7 ms 7 ms 7 ms mega2.pacific.net.hk [202.64.10.29]

4 8 ms 7 ms * v154.wtcc2.pacific.net.hk [202.64.3.129]

5 * * * Request timed out.

6 * * * Request timed out.

It seems the mail server ip is go throught the Internet while the static nat statement is added. Is any thing i can do to fixed it.