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Cisco Bug: CSCus47095 - NAT Configuration Expansion - Upgrading Pre 8.3 to Post 8.3

Last Modified

Nov 08, 2016

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

7.2(5.7) 8.1(2.210) 9.1(5.19)

Description (partial)

Symptom:
When converting our ASA firewalls from 7.2 to 9.1, we find that the NAT rules are expanded to a minimum 4 times the size of the original configuration.  In some cases it's expanded to 8x the original size of the configuration.  It seems to create new NAT entries for each and every singleton object.

Conditions:
Upgrading Pre 8.3 to Post 8.3 with NAT/ACL configurations
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