From: John Kaberna (jkaberna@xxxxxxxxxxxx)
Date: Wed Feb 21 2001 - 21:17:56 GMT-3
In order to get 2 channels you need to configure dialer load-threshold. PPP
multilink by itself is not enough. For the one-way authentication question
you do not need to configure a callback. The hub router receiving the call
(router with ppp chap refuse callin) should authenticate the incoming call.
But the spoke router placing the call shouldnt need to authenticate the hub
router. I am also wondering why you are using the same hostname on both
routers as far as ppp chap is concerned. I'm not sure if that would make a
difference but its definitely not good practice and the proctor may think
you don't know what your doing.
----- Original Message -----
From: "BUI, TIN T (SBCSI)" <tb4565@sbc.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, February 21, 2001 3:36 PM
Subject: ISDN Multilink
> Hi, I have 2 questions with this ISDN configuration. Question 1, I'm
having
> problems with getting the 2nd B channel to come up with Multilink. R3 is
> dialing R5 and only bri0:1 comes up. Am I doing something wrong?
>
> Second question regards ppp chap refuse callin, is this how I can get R3
to
> dial R5 and R5 will refuse authentication from R3 using Chap. In this
> instance, I want R3 to authenticate not R5. This solution seems to simple
> because of only 1 statement. Right now, it does work with this statement,
> but I'm thinking that I need to do callback or something. Can someone
> explain? thanks. Here's the configuration:
>
> On R3:--->
>
> interface BRI0
> no ip address
> no ip directed-broadcast
> ip ospf interface-retry 0
> dialer pool-member 1
> isdn switch-type basic-ni
> isdn spid1 0835866101
> isdn spid2 0835866301
> !
> interface Dialer1
> ip address 170.100.35.243 255.255.255.240
> no ip directed-broadcast
> encapsulation ppp
> ip ospf interface-retry 0
> dialer remote-name r5
> dialer string 8358662
> dialer string 8358664
> dialer pool 1
> dialer-group 1
> ppp authentication chap
> ppp chap hostname user5
> ppp multilink
>
> On R5:--->
>
> interface BRI0
> no ip address
> no ip directed-broadcast
> ip ospf interface-retry 0
> dialer pool-member 1
> isdn switch-type basic-ni
> isdn spid1 0835866201
> isdn spid2 0835866401
> !
> interface Dialer1
> ip address 170.100.35.245 255.255.255.240
> no ip directed-broadcast
> encapsulation ppp
> ip ospf interface-retry 0
> dialer remote-name r3
> dialer string 8358661
> dialer string 8358663
> dialer pool 1
> ppp authentication chap
> ppp chap hostname user5
> ppp chap refuse callin
> ppp multilink
>
> > > Tin T. Bui
> > > Senior Network Manager
> > > CCNP, CNE, MCP
> > > Network Management Center
> > > SBC Services Inc.
> > > 7337 Trade Street, Rm 1110
> > > San Diego, Ca 92121
> > > Office #: 858-886-4644/858-886-4589
> > > Pager #: 858-494-0482
> > > Fax #: 858-549-4103
> > > Email: tb4565@sbc.com
>
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