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PPPTSM 39: LCP is down: **Peer rejected Authentication negotiation** Interface if_name, Board board_number.
Source: PPPTSM-1.1
Explanation: PPP failed to negotiate the authentication with the peer.
Action: Load NIASCFG to ensure that the outbound authentication type in the PPP WAN call destination and the peer's inbound authentication type in the PPP Network Interface configuration are matched.
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