Serial port (Multilink) with Unknown Protocols

Unanswered Question
Oct 28th, 2009

I Found a Serial port on a Multilink that was receving unknown protocols. I had a Sniffer put on and we discoverd that the Protocol was LCP from the Multilink. Why would the router not understand the multilink LCP? Could a Difference in IOS cause this? One Router is 12.4 and the other is 12.2. Thanks!

I have this problem too.
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