cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
894
Views
0
Helpful
4
Replies

cannot delete NAT rule on a PIX 535 (software version 7.0)

gflorescu
Level 1
Level 1

I'm trying to delete a NAT rule but I keep getting the message:

"The operation you are trying to perform will result in some security rules being nullified. Please review your translation/security rules and try again".

I'm using a PIX535 with software version 7.0(4).

I did check the Security Rules and I didn't see anything that would conflict.

4 Replies 4

JORGE RODRIGUEZ
Level 10
Level 10

Hi, you 1st need to delete any firewall rules and/or removing the hosts from any object-groups pertaning to the hosts in the nat translations, then you can remove static nats.

HTH

Jorge

Jorge Rodriguez

I think I figured it out. I went under Building Blocks and I noticed that those ip addresses were under a Group. I removed them from the Group and then I was able to delete the NAT rule.

yeah, usually when you come accross these

"rules nullified" messages it is because the IPs are somehow tied in groups, admin groups, or access control lists .

Im glad you were able to reolve the issue..please rate all helpfull posts.

Jorge

Jorge Rodriguez

JORGE RODRIGUEZ
Level 10
Level 10

Hi, you 1st need to delete any firewall rules and/or removing the hosts from any object-groups pertaning to the hosts in the nat translations, then you can remove static nats.

HTH

Jorge

Jorge Rodriguez
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Review Cisco Networking products for a $25 gift card