From: MANU mohan (cciemanu@rediffmail.com)
Date: Sat Mar 12 2005 - 00:47:28 GMT-3
Hi,
Either add the dial string at the end of the dialer map or configure
CHAP or PAP authentication .
The other way of doing only one side
initiating calls is the not to configure any dialer maps on the receiving
side.This works only in case of PPP as this creates a dynamic dialer map on
the receiving side.
Manu
On Fri,
11 Mar 2005 simon hart wrote :
>Sorry the config should look like this - still
same problem (Frame_R4
>instead of Rack1R5 on the dialer map)
>
>S.
>
>-----Original Message-----
> From: nobody@groupstudy.com
[mailto:nobody@groupstudy.com]On Behalf Of simon
>hart
>Sent: 11 March 2005
17:02
>To: Group Study
>Subject: ISDN problem
>
>
>Hi all,
>
>I am having a
bit of a nightmare with some simple ISDN configuration: I am
>trying to
establish a connection between two routers R4 and R5. R5 should
>not be able
to initiate a call - only R4. I am using legacy DDR, configs
>below
>
>Frame_R4#
>!
>interface BRI0
> ip address 187.1.45.4 255.255.255.0
>
encapsulation ppp
> dialer map ip 187.1.45.5 name Rack1R5 broadcast 2222
>
dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 1211
>end
>!
>dialer-list 1 protocol ip permit
>
>
>
>Rack1R5#
>!
>interface BRI0/0
> ip
address 187.1.45.5 255.255.255.0
> encapsulation ppp
> dialer idle-timeout 0
> dialer map ip 187.1.45.4 name Frame_R4 broadcast
> isdn switch-type
basic-ni
> isdn spid1 2122
>end
>
>
>If I ping from Frame_R4 then the ISDN
line is brought up but no response to
>the pings. If I debug IP packet on R5
I notice that I have an encapsulation
>failure:
>Rack1R5#
>*Mar 1
07:52:46.460: IP: s=187.1.45.4 (BRI0/0), d=187.1.45.5 (BRI0/0), len
>100, rcvd
3
>*Mar 1 07:52:46.460: IP: s=187.1.45.5 (local), d=187.1.45.4 (BRI0/0), len
>100, sending
>*Mar 1 07:52:46.460: IP: s=187.1.45.5 (local), d=187.1.45.4
(BRI0/0), len
>100, encapsulation failed
>Rack1R5#
>*Mar 1 07:52:48.459: IP:
s=187.1.45.4 (BRI0/0), d=187.1.45.5 (BRI0/0), len
>100, rcvd 3
>*Mar 1
07:52:48.459: IP: s=187.1.45.5 (local), d=187.1.45.4 (BRI0/0), len
>100,
sending
>*Mar 1 07:52:48.463: IP: s=187.1.45.5 (local), d=187.1.45.4
(BRI0/0), len
>100, encapsulation failed
>
>As you can see it is showing an
encapsulation failure, however the map looks
>fine and the config is exactly
as dictated within the solution guide of the
>Internetwork expert solution
guide
>
>Any comments most welcome
>
>S.
>
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