Cisco Bug: CSCtb06968 - ICMP unreachable message being built incorrectly
Nov 09, 2016
- Cisco ASA 5500-X Series Firewalls
Known Affected Releases
Symptom: Not receiving an ICMP destination unreachable (fragmentation needed) when sending a large packet with the do not fragment bit set through an IKEv1 tunnel in which the packet size is larger then MTU of the interface to the private network. Conditions: Running this test scenario on an ASA image 220.127.116.11 an ICMP destination unreachable message is received. But when running this test scenario with the newest code the ICMP destination unreachable is dropped by one of the ASA's for not matching the Access List of the tunnel.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases