Core issue
This issue occurs due to the presence of Cisco bug ID CSCsd08170.
This problem occurs when there is already an existing xlate for the interface IP address on port 500.
In order to display the port translations on port 500, issue the show xlate global | inc 500 command.
Resolution
In order to resolve this issue, perform one of these steps:
- Replace the global command with an IP address that is not the interface with the Internet Security Association and Key Management Protocol (ISAKMP) enabled.
- Download and upgrade the software version to any of these versions:
- 7.3(0.11)
- 7.2(0.75)
- 7.3(0.10)
- 7.1(2.5)