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Cisco Bug: CSCuj72638 - ASA-SM - TFW Dropping jumbo mcast traffic with 3 intf in a bridge group

Last Modified

Apr 16, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.1(2.8)

Description (partial)

Symptom:
ASA-SM 9.1 running in transparent mode with 3 or 4 interfaces in a single bridge group does not pass jumbo multicast/UDP traffic.  Packets will be dropped and will show up in an asp drop capture as invalid UDP length.

Conditions:
ASA-SM running 9.x software with:
- transparent mode
- bridge-group with 3 or 4 interfaces.
- Sending jumbo size traffic (multicast for example)
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
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