Debug Output
Activate debug dialer and debug ppp negotiation, then initiate a ping to the peer. The router should attempt
to dial. Once the ISDN connection is established PPP negotiation should begin. The following debug output
shows a successful call.
Router#show debug
Dial on demand: Dial on demand events debugging is on
PPP:
PPP authentication debugging is on
PPP protocol negotiation debugging is on
Router#ping 192.168.180.22
Type escape sequence to abort.
Sending 5, 100−byte ICMP Echos to 192.168.180.22, timeout is 2 seconds:
Serial1: Dialing cause ip (s=192.168.180.2,d=192.168.180.22)
!−−− Dialing cause is ping to 192.168.180.22.
Serial1: Attempting to dial 5551111&5551112
!−−− Call is dialed out using Serial1
!−−−(which is connected to the ADTRAN).
!−−− Remember that ADTRAN handles the ISDN L1−L3, so ISDN messages
!−−− will not be visible on the router.
Se1 UNKNOWN(0x00FF): LCP not open, discarding packet.
Se1 UNKNOWN(0x00FF): LCP not open, discarding packet
Se1 LCP: I CONFREQ [Closed] id 49 len 15
!−−− PPP Negotiation begins.
Se1 LCP: AuthProto CHAP (0x0305C22305)
Se1 LCP: MagicNumber 0x65FF6351 (0x050665FF6351)
Se1 LCP: Lower layer not up, discarding packet
%LINK−3−UPDOWN: Interface Serial1, changed state to up.
Se1 PPP: Treating connection as a callout
Se1 PPP: Phase is ESTABLISHING, Active Open
Se1 LCP: O CONFREQ [Closed] id 47 len 15
Se1 LCP: AuthProto CHAP (0x0305C22305)
Se1 LCP: MagicNumber 0x048333B0 (0x0506048333B0)
Se1 LCP: I CONFACK [REQsent] id 48 len 15
Se1 LCP: AuthProto CHAP (0x0305C22305)
Se1 LCP: MagicNumber 0x048333B0 (0x0506048333B0)
Se1 LCP: I CONFREQ [ACKrcvd] id 50 len 15
Se1 LCP: AuthProto CHAP (0x0305C22305)
Se1 LCP: MagicNumber 0x65FF6351 (0x050665FF6351)
Se1 LCP: O CONFACK [ACKrcvd] id 50 len 15
Se1 LCP: AuthProto CHAP (0x0305C22305)
Se1 LCP: MagicNumber 0x65FF6351 (0x050665FF6351)
Se1 LCP: State is Open
Se1 PPP: Phase is AUTHENTICATING, by both
Se1 CHAP: O CHALLENGE id 11 len 42 from "Router"
Se1 CH.AP: I CHALLENGE id 11 len 30 from "peer"
Se1 CHAP: O RESPONSE id 11 len 42 from "Router"
Se1 CHAP: I SUCCESS id 11 len 4
Se1 CHAP: I RESPONSE id 11 len 30 from "peer"
Se1 CHAP: O SUCCESS id 11 len 4
!−−− Authentication is successful.
Se1 PPP: Phase is UP
Se1 IPCP: O CONFREQ [Closed] id 16 len 10
Se1 IPCP: Address 192.168.180.2 (0x0306CF12B402)
