From: rodrigo.kazuo@xxxxxxxxxx
Date: Fri Dec 03 1999 - 10:47:09 GMT-3
Thank you all that posted sample configs and msgs regarding this subject,
but I still have some problems... =\
I configured my R3 as Chanīs msg below, and R5 with ip add/ppp encap/diale
r
map only. In this situation, R3 starts connection indefinitely, the link become
s
up/down/up/down...
As I know, when I am configuring a dialer list with ip permit, any ip
traffic will start the isdn conn, wonīt it?! As I understand, the ip ospf deman
d
configuration will only supress hellos and LSAs...
I am running appletalk and ipx, but I didnīt inserted any command of
ipx/apple in the dialer statements, then I think they will not start the
connection... One doubt: From the moment the ISDN become up, these protocols
will keep the connection up indefinitely or only ip will?
Tks and rgds to all
Rgds...
Echo Chan <echo.chan@HK.UU.NET> on 12/01/99 11:02:39 PM
To: Rodrigo Kazuo/Brazil/AMERICAS/Equant@Equant
cc: Wayne Chan <wayne.chan@HK.UU.NET>
Subject: RE: OSPF with ISDN backup
Hi Rodrigo,
I think you are talking part of the scenario in the Lab.
Here is my experience. It's workable.
- Configure the ISDN switch type
- If you use legacy bri0 interface
- Configured an ip address on the bri0 interfaces
- Configure PPP Encapsulation, don't configure any authentication
- configured dialer map with dialer string
- Configure a SPID
- Configure multilink PPP
example on R3
isdn switch-type XXXXXX
!
dialer-list 1 protocol ip permit
! (also permit the ospf hello packet)
!
interface bri 0
ip address 140.10.200.1 255.255.255.248
encapsulation ppp
dialer-group 1
dialer map ip 140.10.200.2 broadcast 123456
ip ospf demand-circuit (suppress hello and DNA on ospf database entries)
ppp multilink
!
!
router ospf 100
network 140.10.200.0 0.0.0.7 area 0
Hope it help!!
Remember to give me tips next time, Thanks
Best Regards,
Chan Wai Sun
-----Original Message-----
From: rodrigo.kazuo@equant.com [mailto:rodrigo.kazuo@equant.com]
Sent: Thursday, December 02, 1999 6:49 AM
To: ccielab@groupstudy.com
Subject: OSPF with ISDN backup
I have here in my lab the following topology:
BGP --- (R3) ---- (Catalyst) ---- (R5) --- OSPF Area 3
|
R2
- Between R3 and R5 I have an additional ISDN link, and I want to configure
the
ISDN as a backup when topology changes occur in OSPF (for example, if my
link
between cat and R5 fails).
- R3/R2/R5 (except R5īs area 3 interface) are in Area 0
- I have an ip subnet for the isdn link and other subnet for the rest of
interfaces in Area 0
Can anyone try to help me or give me a direction?
OBS: The problem is that I cannot configure static routes or floating
routes...
Tks in advance
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:21:58 GMT-3