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Cisco Bug: CSCte76618 - ACE breaks application by performing implicit PAT on natted connections

Last Modified

Feb 01, 2012

Products (1)

  • Cisco ACE 4700 Series Application Control Engine Appliances

Known Affected Releases


Description (partial)

When  traffic traverses the ACE module with the same source and destination port and dynamic nat for that traffic is enabled, the ACE will perform an implicit PAT.  This will break some sessions.

This do not happens if there is no NAT involved.
dynamic NAT is enabled
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