Cisco Bug: CSCvv58332 - ASA/FTD is reading BGP MP_REACH_NLRI attribute's next-hop bytes in reverse order
Oct 27, 2020
- Cisco Adaptive Security Appliance (ASA) Software
Known Affected Releases
6.4(0.0) 6.5(0) 6.6
Symptom: Currently ASA/FTD code reverses the next-hop byte order contained in the BGP MP_REACH_NLRI path attribute Example: > show bgp neighbors 192.168.0.9 routes BGP table version is 8, local router ID is 192.168.2.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path * 192.168.12.212/32 188.8.131.52 0 13879 65000 ? Conditions: The appliance is forming adjacency with another BGP speaking router and that peer router advertises prefix using MP_REACH_NLRI attribute for IPv4 unicast AF.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases