Specifications

Configuring Asynchronous Lines and Interfaces
How to Configure Asynchronous Interfaces and Lines
DC-22
Cisco IOS Dial Technologies Configuration Guide
If you are having trouble, enter one of the following debug commands and then send a call into the
access server. Interpret the output and make configuration changes accordingly.
• undebug all
• debug ppp negotiation
• debug ppp authentication
• debug modem
• debug ip peer
Router# undebug all
All possible debugging has been turned off
Router# debug ppp negotiation
PPP protocol negotiation debugging is on
Router# debug ppp authentication
PPP authentication debugging is on
Router# debug modem
Modem control/process activation debugging is on
Router# debug ip peer
IP peer address activity debugging is on
Router# show debug
General OS:
Modem control/process activation debugging is on
Generic IP:
IP peer address activity debugging is on
PPP:
PPP authentication debugging is on
PPP protocol negotiation debugging is on
Router#
*Mar 1 21:34:56.958: tty4: DSR came up
*Mar 1 21:34:56.962: tty4: Modem: IDLE->READY
*Mar 1 21:34:56.970: tty4: EXEC creation
*Mar 1 21:34:56.978: tty4: set timer type 10, 30 seconds
*Mar 1 21:34:59.722: tty4: Autoselect(2) sample 7E
*Mar 1 21:34:59.726: tty4: Autoselect(2) sample 7EFF
*Mar 1 21:34:59.730: tty4: Autoselect(2) sample 7EFF7D
*Mar 1 21:34:59.730: tty4: Autoselect(2) sample 7EFF7D23
*Mar 1 21:34:59.734: tty4 Autoselect cmd: ppp negotiate
*Mar 1 21:34:59.746: tty4: EXEC creation
*Mar 1 21:34:59.746: tty4: create timer type 1, 600 seconds
*Mar 1 21:34:59.786: ip_get_pool: As4: using pool default
*Mar 1 21:34:59.790: ip_get_pool: As4: returning address = 172.20.1.101
*Mar 1 21:34:59.794: tty4: destroy timer type 1 (OK)
*Mar 1 21:34:59.794: tty4: destroy timer type 0
*Mar 1 21:35:01.798: %LINK-3-UPDOWN: Interface Async4, changed state to up
*Mar 1 21:35:01.834: As4 PPP: Treating connection as a dedicated line
*Mar 1 21:35:01.838: As4 PPP: Phase is ESTABLISHING, Active Open
*Mar 1 21:35:01.842: As4 LCP: O CONFREQ [Closed] id 1 len 25
*Mar 1 21:35:01.846: As4 LCP: ACCM 0x000A0000 (0x0206000A0000)
*Mar 1 21:35:01.850: As4 LCP: AuthProto CHAP (0x0305C22305)
*Mar 1 21:35:01.854: As4 LCP: MagicNumber 0x64E923A8 (0x050664E923A8)
*Mar 1 21:35:01.854: As4 LCP: PFC (0x0702)
*Mar 1 21:35:01.858: As4 LCP: ACFC (0x0802)
*Mar 1 21:35:02.718: As4 LCP: I CONFREQ [REQsent] id 3 len 23
*Mar 1 21:35:02.722: As4 LCP: ACCM 0x000A0000 (0x0206000A0000)
*Mar 1 21:35:02.726: As4 LCP: MagicNumber 0x00472467 (0x050600472467)
*Mar 1 21:35:02.726: As4 LCP: PFC (0x0702)
*Mar 1 21:35:02.730: As4 LCP: ACFC (0x0802)
*Mar 1 21:35:02.730: As4 LCP: Callback 6 (0x0D0306)
*Mar 1 21:35:02.738: As4 LCP: O CONFREJ [REQsent] id 3 len 7
*Mar 1 21:35:02.738: As4 LCP: Callback 6 (0x0D0306)
*Mar 1 21:35:02.850: As4 LCP: I CONFREQ [REQsent] id 4 len 20