NATTing Problem

Unanswered Question
Jul 9th, 2007


I have a 6509 core switch with FWSM module installed in it the outside interface of this module is connected to the inside interface

of cisco pix 506E, the outside interface of the PIX is connected to a router then to the ISP.

before writing the NATTing problem, this is the current NATTing and Static configuration for both the Module and PIX:


interface Vlan200

nameif OUTSIDE

security-level 0

ip address

interface Vlan205

nameif inside

security-level 100

ip address

static (inside,OUTSIDE) netmask

static (inside,OUTSIDE) netmask

static (inside,OUTSIDE) netmask


ip address outside

ip address inside

global (outside) 1 interface

nat (inside) 1 0 0

with this configurations all have internet connction without any problems.

I faced the problem when i tried to change the static configurations in the Firewall module and use NAT instead of static

without changing any thing in the PIX

here what i did in the module

global (OUTSIDE) 1

nat (inside) 1

nat (inside) 1

nat (inside) 1

after making this new configurations all networks didn't have internet connections, this is my problem so anyone have a clue for this


Talal Habeeb

I have this problem too.
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