Cisco Bug: CSCta33419 - ASA VPN dropping self-sourced ICMP packets (PMTUD)
Nov 08, 2016
- Cisco ASA 5500-X Series Firewalls
Known Affected Releases
Symptom: Path-MTU Discovery is not working through ASA if it is configured as VPN hardware client (VPN Remote) and configured to tunnel all traffic. Packets sent with DF bit are dropped on the ASA. Conditions: MTU of outside interface is set to a lower MTU, so that packets from the inside hosts would have to be fragmented.
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Bug Details Include
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