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Cisco Bug: CSCvs02084 - Traffic dropping using IPv4 over IPV6 BGP peer for RFC 5549 IOS-XR over Dual Stack Interfaces

Last Modified

Sep 02, 2020

Products (12)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco Network Convergence System 5504
  • Cisco Network Convergence System 55A2-MOD-HD-S
  • Cisco Network Convergence System 5516
  • Cisco Network Convergence System 5502-SE
  • Cisco Network Convergence System 5502
  • Cisco Network Convergence System 55A1-24H
  • Cisco Network Convergence System 55A2-MOD-S
  • Cisco Network Convergence System 55A2-MOD-SE-S
  • Cisco Network Convergence System 5501-SE
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Known Affected Releases

6.5.3.BASE

Description (partial)

Symptom:
Transit Traffic will drop on Router B below  when pinging from RTR-A to RTR-C IPv4 address. Between
RTR-B and RTR-C is a EBGP connection running IPv6 BGP peer. The IPv4 prefix will be advertised over the IPv6 BGP peer. RTR-B will be able to ping the IPv4 prefix located on RTR-C 


RTR-A--IBGP---RTR-B--EBGP---RTR-C. (IP address)

Conditions:
Running IPv4 Prefixes over a IPV6 BGP peer running IOS-XR on dual stack interfaces i.e. with v4 and v6 addresses enabled
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Bug Details Include

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