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Cisco Bug: CSCvi18459 - USGv6: Cat9300 Doesn't Send v6 Error Messages

Last Modified

Oct 25, 2019

Products (151)

  • Cisco IOS
  • Cisco Catalyst 3850-24U-L Switch
  • Cisco Catalyst 3650-8X24UQ-E Switch
  • Cisco Catalyst 3650-24TD-S Switch
  • Cisco Catalyst 3650-12X48UQ-L Switch
  • Cisco Catalyst 3850-24U-S Switch
  • Cisco 4221 Integrated Services Router
  • Cisco Catalyst 9300-48P-A Switch
  • Cisco Catalyst 9300-48T-A Switch
  • Cisco Catalyst 3850-48XS-F-S Switch
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Known Affected Releases


Description (partial)

For certain IPv6 error messages, the device fails to reply/forward out Parameter Problem and Time Exceeded messages.

With an IPv6 configured port, when receiving a packet that would trigger a Parameter Problem or when the device exceeds the re-assembly time for a fragmented packet, these error messages are never sent back to the originating host of the receiving packet.
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