Cisco Bug: CSCuq76005 - Whales: IPv4 Multicast packets with TTL=0 not dropped
Last Modified
Feb 02, 2017
Products (20)
- Cisco ME 3600X Series Ethernet Access Switches
- Cisco ASR 901-6CZ-F-D Router
- Cisco ASR 901-6CZ-FS-D Router
- Cisco ASR 901S-4SG-F-D Router
- Cisco ASR 901-4C-FT-D Router
- Cisco ME 3600X-24TS-M Switch
- Cisco ASR 901S-2SG-F-D Router
- Cisco ASR 901S-2SG-F-AH Router
- Cisco ASR 901-6CZ-F-A Router
- Cisco ASR 901-6CZ-FT-A Router

Known Affected Releases
15.5(1)S
Description (partial)
Symptom: Multicast IP packets with "TTL field" value 0 were processed and forwarded. Observed unexpected traffic, this may be a potential DOS. Conditions: TTL value of 0 was decremented and forwarded with TTL value 255.
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