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Cisco Bug: CSCuj09814 - Crash after removing a NAT pool with route-maps then creating it again

Last Modified

Mar 24, 2019

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.3(2)S1

Description (partial)

Symptom:
An ESP crash occurs for non fixed IOS-XE routers. If the ESP is integrated (ASR1001/ASR1002F/ASR1002X/4451/ect) the entire router will crash.

Conditions:
This symptom occurs when a existing NAT pool is unconfigured and re-configured with a new address. For example:


no ip nat inside source route-map 105_NAT_MAP pool 105_NAT_POOL vrf CLIENT_105 overload
no ip nat pool 105_NAT_POOL 10.10.10.1 10.10.10.1 netmask 255.255.255.252

ip nat pool 105_NAT_POOL 10.10.10.2 10.10.10.2 netmask 255.255.255.252
ip nat inside source route-map 105_NAT_MAP pool 105_NAT_POOL vrf CLIENT_105 overload


The crash happens when the new NAT translations are created but the old translations still exist.
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