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### Instruction:
PPP_LCP-4-UNRECOGNIZED_PROTO
### Response:
(Severity: 4), (Category: L2), (Description: Interface Manager notified LCP about a protocol that it doesn't recognize, either by sending a request to LCP to adopt this node or by informing LCP that it exists. This is a programming error as LCP needs to recognized all of the protocols which run above it in order to be able to run the relevant CP.), (Recommended Action: Copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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