Cisco Bug: CSCtb52260 - OSPF MD5 authentication link failure on reload
Jun 17, 2016
- Cisco Nexus 7000 Series Switches
Known Affected Releases
Symptom:OSPF configured using MD5 authentication returns "bad authentication" errors after a line card restart. Conditions:The bug is applicable in the following configuration scenario. (1) If there is any area level authentication command - i.e., area <area-id> authentication [message-digest] followed by any authentication type such as md5. (2) No other area level command such as NSSA/stub (area <id> nssa/stub), cost (area <id> default-cost) or address-range is configured. The bug will be triggered if either (1) All interfaces belonging to that area are unconfigured followed by a configuration of any interface(s) in that area, then those interfaces will not inherit the authentication command from the area and there will be authentication errors for these new interfaces. or (2) All interfaces belonging to the area are on a particular line card, and the line card goes through a reload, then there will be authentication errors seen on those interfaces, once they are up again.
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