From: Jason Sinclair (sinclairj@xxxxxxxxxxxxxxx)
Date: Wed May 15 2002 - 03:10:13 GMT-3
Budiman,
OK there are a couple of things you need to try. Firstly issue a show dialer
map on the HQ router. Check that this reflects a host route via the dialer
rather than the /24. Also do a debug ip packet on HQ and make sure that HQ
is not sending the packets to the wrong router. Also remove the multilink
statements - they are not doing anything for you as you have not defined a
dialer load-threshold. Also do a show ppp multi and make sure that the
routers are not mistakenly trying to bond the two calls together.
Let me know how you go.
Regards,
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
-----Original Message-----
From: Budiman Notorahardjo
[mailto:BudimanN@sg.fujitsu.com]
Sent: Wednesday, 15 May 2002 12:14
To: 'Ccielab
Subject: ISDN Dialer Map
Hi guys,
I have one headquarter router (HQ) and two branch routers
(SLS and IBP).
These 2 branch routers are connected to HQ via ISDN.
HQ uses PRI interface meanwhile SLS and IBP use BRI
interfaces.
The branch routers will trigger link if there is interesting
packet.
The ISDN configuration in HQ is:
username SLS password cisco
username IBP password cisco
interface Serial1/1/1:15
ip address 43.68.105.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 60
dialer map ip 43.68.105.2 name SLS
dialer map ip 43.68.105.8 name IBP
dialer hold-queue 5
dialer-group 1
ppp authentication chap
ppp multilink
hold-queue 75 in
dialer-list 1 protocol ip permit
The ISDN configuration in SLS is:
username HQ password cisco
interface BRI0
ip address 43.68.105.2 255.255.255.0
encapsulation ppp
dialer idle-timeout 60
dialer map ip 43.68.105.1 name HQ 68575757
dialer load-threshold 128 either
dialer-group 1
ppp authentication chap
ppp multilink
hold-queue 75 in
dialer-list 1 protocol ip permit
The ISDN configuration in IBP is:
username HQ password cisco
interface BRI0
ip address 43.68.105.8 255.255.255.0
encapsulation ppp
dialer idle-timeout 60
dialer map ip 43.68.105.1 name HQ 68575757
dialer load-threshold 128 either
dialer-group 1
ppp authentication chap
ppp multilink
hold-queue 75 in
dialer-list 1 protocol ip permit
The problem is:
SLS router can connect to HQ successfully, but IBP router
cannot.
If I see the debug ISDN and PPP, the status of BRI is
connected and PPP
authentication is successful.
The PPP negotiation is also successful, and the status of
IPCP is open.
But, if I remove "dialer map ip 43.68.105.8 name IBP"
command in HQ router,
IBP can connect successfully.
It is very weird, because the configuration of SLS and IBP
are same.
The difference between SLS and IBP is in IOS.
HQ and SLS use IOS version 11.3, meanwhile IBP uses the
newest IOS which is
12.2(7a).
Have you ever encountered similar problem?
Thanks,
Budiman N
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