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Cisco Bug: CSCtf36243 - Alias for NAT inside global is deleted after dynamic translation expires

Last Modified

Sep 08, 2017

Products (2)

  • Cisco IOS
  • Cisco Unified MeetingPlace 8.5

Known Affected Releases

12.4(24)T 15.0

Description (partial)

If an Access Control List (ACL) for the NAT inside local address and the NAT pool for the inside
global addresses overlap, after a dynamic translation expires, the IP Alias entry for the inside
global address is deleted. This results in the failure of outside-to-inside static translations that
rely on a cached IP alias entry.


ip nat pool test-pool prefix-length 24
ip nat inside source route-map test-rm pool test-pool overload
ip nat inside source static tcp 23 23 extendable
ip access-list extended test-acl
  permit ip host any
route-map test-rm permit 10
  match ip address test-acl
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  • Status
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