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Cisco Bug: CSCvt09228 - ASR1k Egress PE IP TTL isn't decreased correctly when receives IP TTL=1

Last Modified

Aug 29, 2020

Products (14)

  • Cisco ASR 1000 Series Aggregation Services Routers
  • Cisco ASR 1000 Series IOS XE SD-WAN
  • Cisco 4221 Integrated Services Router
  • Cisco 4331 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco ASR 1002-X Router
  • Cisco ASR 1001-X Router
  • Cisco 4351 Integrated Services Router
  • Cisco ISR 4000 Series IOS XE SD-WAN
  • Cisco ASR 1002-HX Router
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Known Affected Releases

16.9.4 17.1.1

Description (partial)

When an Egress PE (asr1k) receives a packet with IP set with ttl=1, asr1k should drop that packet.
However it's forwardind that packet to CE Router, with the same ttl=1.

When Egress PE (asr1k) receives a packet with IP ttl=1.
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