Re: Problem with ISDN when calling between two routers from CH1 to CH2 on same number.

From: Nigel Taylor (nigel_taylor@xxxxxxxxxxx)
Date: Tue Jan 30 2001 - 23:43:59 GMT-3


   
les,
     Use the "debug ppp auth" and or "debug ppp nego" commands to see what's
causing you line to disconnect. Another thing I couldn't tell was what
switch-type you're using and if spids are required on your physicall
interface. Also look at you layer 2 and layer 3 commands for what your D
channel is doing(debug isdn q921/q931)

HTH

Nigel.

>From: "Flack, Les" <LFlack@thrupoint.net>
>Reply-To: "Flack, Les" <LFlack@thrupoint.net>
>To: <ccielab@groupstudy.com>
>Subject: Problem with ISDN when calling between two routers from CH1 to CH2
>on same number.
>Date: Tue, 30 Jan 2001 19:06:10 -0000
>
>Hi all,
>
> I'm having a problem with ISDN when calling between two routers =
>from CH1 to CH2 on the same number. (My isdn line has the same number =
>for both B channels.)
>
>For example:
>
> My 1600 at 12.0(14) calls out of B1 and my 2500 11.3(11a) receives on =
>B2 no problem.
>
>but if I try to make the call from the 2500 to the 1600 the 2500 calls =
>out on B1 AND receives the call on B2. The 1600 does see the call come =
>in on B2 but receives a HOST_DISCONNECT_ACK before it can setup the =
>call.
>
>What am I doing wrong??
>
>regards,
>
>Les
>
>1600 (r6#)
>
>interface BRI0
> ip address 172.168.65.1 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> ip ospf network point-to-point
> no ip mroute-cache
> dialer map ip 172.168.65.2 name r5 broadcast 9583
> dialer-group 1
> isdn switch-type basic-net3
> ppp authentication chap
> ppp chap hostname r6
> ppp chap password 7 1511021F0725
>end
>
>r6#
>1d05h: ISDN BR0: Incoming call id =3D 0x2E
>1d05h: ISDN BR0: received HOST_INCOMING_CALL call_id 0x2E
>1d05h: ISDN BR0: Event: Received a call from <unknown> on B2 at 64 Kb/s
>1d05h: ISDN BR0: Event: Accepting the call id 0x2E
>1d05h: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
>1d05h: %ISDN-6-CONNECT: Interface BRI0:2 is now connected to unknown
>1d05h: BR0:2 PPP: Treating connection as a callin
>1d05h: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x2E
>1d05h: %LINK-3-UPDOWN: Interface BRI0:2, changed state to down
>1d05h: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x2E
>r6#
>
>2500 (r5#)
>
>interface BRI0
> ip address 172.168.65.2 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> no ip mroute-cache
> dialer map ip 172.168.65.1 name r6 broadcast 9583
> dialer-group 1
> ppp authentication chap
> ppp chap hostname r5
> ppp chap password 7 045802150C2E=20
>
>r5#
>1d05h: ISDN BR0: Outgoing call id =3D 0x801E
>1d05h: ISDN BR0: Event: Call id 0x801E to 9583 at 64 Kb/s
>1d05h: ISDN BR0: received HOST_INFORMATION call_id 0x801E
>1d05h: ISDN BR0: Incoming call id =3D 0x66
>1d05h: ISDN Event: dsl 0 call_id 0x801E B channel assigned by switch 0
>ISDN BR0: received HOST_INCOMING_CALL call_id 0x66
>1d05h: ISDN BR0: llc valid, speed 64, call type is Sync
>speed:-1 async:Y
>1d05h: ISDN BR0: Event: Received a call from <unknown> on B2 at 64 Kb/s
>1d05h: ISDN BR0: Event: Accepting the call id =3D 0x66
>1d05h: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
>1d05h: ISDN BR0: received HOST_ALERTING call_id 0x801E
>1d05h: ISDN BR0: received HOST_CONNECT call_id 0x801E
>1d05h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
>1d05h: ISDN BR0: Event: Connected to 9583 on B1 at 64 Kb/s
>r5#
>1d05h: %ISDN-6-CONNECT: Interface BRI0:2 is now connected to unknown
>1d05h: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 9583
>r5# =20
>
>---------------------------------------End-------------------------------=
>------------
>
>



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