Cisco Bug: CSCuo87783 - RTfilter NLRI with ASN 0 is working as default one
Last Modified
Apr 18, 2019
Products (13)
- Cisco IOS
- Cisco 7206 Router
- Cisco 7301 Router
- Cisco 7204 Router
- Cisco 7206VXR Router
- Cisco 7202 Router
- Cisco 7600 Series Route Switch Processor 720 with Multilayer Switch Feature Card
- Cisco 7600 Series Route Switch Processor 720 with 10 Gigabit Ethernet Uplinks
- Cisco 7200 Series NPE-G2 Network Processing Engine
- Cisco 7600 Series Supervisor Engine 32 with Multilayer Switch Feature Card

Known Affected Releases
15.1(3)S5
Description (partial)
Symptom: If rtfilter NLRI received by RR has AS number 0, then default filtering enabled to that sender and every vpnv4 prefix is advertised without filtering. Conditions: rtfilter NLRI received by RR has AS number 0, e.g.: RND-61-004-BB91#sh ip bgp rtfilter all BGP table version is 104, local router ID is 10.250.70.0 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, x best-external, f RT-Filter, a additional-path Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path *>i0:2:64861:11 10.250.69.34 100 32768 i
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