I got PPP LCP timeout problem with ISDN connection. Line was drop every 20 sec. I already try to change speed already.(56k , 64k). Only saw Open confreq message(BR0/0:1 LCP: O CONFREQ [Closed] id 113 len 32) not reply from other side. Pls advice me for this problem.
Could be many things. Is the other side running PPP? Does the Q.931 call complete? Is it the right call type (e.g., data, not voice)? Ar ethe ISDN ports properly provisioned at both sides? Ar ethe two ISDN lines on the same carrier?
Debug isdn Q931 on both sides may be illustrative.
Thank you Philip. Q931 was successful.But not from same ISDN carrier. It is happen as same as mention in https://supportforums.cisco.com/post!reply.jspa?message=3219791. But I already try to change speed but not working. Any suggestion, pls .
*Mar 14 01:49:10.160: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
! -- Call is connected. PPP negotiation will begin *Mar 14 01:49:10.168: %DIALER-6-BIND: Interface BR0:1 bound to profile Di1. *Mar 14 01:49:10.188: BR0:1 PPP: Treating connection as a callout *Mar 14 01:49:10.188: BR0:1 PPP: Phase is ESTABLISHING, Active Open
[0 sess, 0 load]
! -- PPP negotiation begins *Mar 14 01:49:10.196: BR0:1 LCP: O CONFREQ [Closed] id 24 len 15 *Mar 14 01:49:10.200: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Mar 14 01:49:10.204: BR0:1 LCP: MagicNumber 0x545D708A (0x0506545D708A).
! -- Outgoing Configure-Request (CONFREQ) *Mar 14 01:49:12.176: BR0:1 LCP: TIMEout: State REQsent! -- Router has not received a CONFREQ from the peer, hence the timeout *Mar 14 01:49:12.180: BR0:1 LCP: O CONFREQ [REQsent] id 25 len 15 *Mar 14 01:49:12.184: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Mar 14 01:49:12.188: BR0:1 LCP: MagicNumber 0x545D708A (0x0506545D708A). *Mar 14 01:49:14.160: BR0:1 LCP: TIMEout: State REQsent *Mar 14 01:49:14.164: BR0:1 LCP: O CONFREQ [REQsent] id 26 len 15 *Mar 14 01:49:14.168: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Mar 14 01:49:14.172: BR0:1 LCP: MagicNumber 0x545D708A (0x0506545D708A)
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