Inside route cannot pint outside router throught PIX after adding nat

Posted on 2012-09-17
Medium Priority
Last Modified: 2012-09-18
Anyone can do me favor?

After I configure routing protocol at InsideRouter and OutsideRouter, Inside router can ping outside router through PIX. Here is topology: InsideRouter----PIX----OutsideRouter

InsideRouter ip address
OutsideRouter ip address
PIX inside interface
PIX outside interface

After i added nat(inside) 1 and globe(outside) 1 at PIX, the InsideRouter cannot ping OutsideRouter

After i remove nat(inside) 1, the InsideRouter can pint the OutsideRouter again

Is there something wrong ?
Question by:davidy2001
LVL 18

Assisted Solution

by:Garry Glendown
Garry Glendown earned 750 total points
ID: 38408182
Routes on the outside router? (unlikely as the outside should be connected route)
ACLs not updated to NAT IPs?
Also, check whether a ping on the outside router towards the NATed inside IP will result the firewall's outside interface's MAC address being listed for the NAT ip.
LVL 35

Accepted Solution

Ernie Beek earned 750 total points
ID: 38408503
Some other thoughts:

-Do you already have another nat-global on the interfaces?
-Does your outside ACL allow ICMP to those other public addresses (

Author Comment

ID: 38410393
You are so great. I did not update acl.

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