From: folivore (folivore@hotmail.com)
Date: Tue Jul 29 2003 - 21:23:27 GMT-3
maybe try another version of code.
Or just delete "dialer map ip 172.16.12.2 name R2" and retype it without an
extra blank
----- Original Message -----
From: "Jim Phillipo" <jim.phillipo@guardent.com>
To: <donny.mateo@sg.ca-indosuez.com>; <ccielab@groupstudy.com>
Cc: <nobody@groupstudy.com>
Sent: Monday, July 28, 2003 9:45 PM
Subject: RE: ISDN Question
> Here are the configs. R2 will bring up the link when it pings R2. R1 will
> connect but not be able to ping (unless a dialer-group is added)
> If I add the dialer-group it will work fine (even without the phone number
> in the map command)
>
> hostname R1
> !
> username R2 password 0 nmc
> !
> isdn switch-type basic-ni
> !
> interface BRI0
> ip address 172.16.12.1 255.255.255.0
> encapsulation ppp
> ip ospf demand-circuit
> dialer map ip 172.16.12.2 name R2
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 5101 8995101
> isdn spid2 5102 8995102
> no peer neighbor-route
> ppp authentication chap
> !
> show dialer map on R1 (Static dialer map ip 172.16.12.2 name R2 () on BR0)
> !
> !
> hostname R2
> !
> username R1 password 0 nmc
> !
> interface BRI0
> ip address 172.16.12.2 255.255.255.0
> encapsulation ppp
> ip ospf demand-circuit
> dialer map ip 172.16.12.1 name R1 broadcast 8995101
> dialer map ip 172.16.12.1 name R1 broadcast 8995102
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 5201 8995201
> isdn spid2 5202 8995202
> no peer neighbor-route
> ppp authentication chap
> !
> dialer-list 1 protocol ip permit
>
> -----Original Message-----
> From: donny.mateo@sg.ca-indosuez.com
> [mailto:donny.mateo@sg.ca-indosuez.com]
> Sent: Monday, July 28, 2003 10:38 PM
> To: ccielab@groupstudy.com
> Cc: ccielab@groupstudy.com; nobody@groupstudy.com
> Subject: Re: ISDN Question
>
>
> First of all, Dialer-group and dialer-list is not the one who trigger the
> call. They are used to tell the router which traffic is interesting and to
> keep dialer-idle timout refresh so the isdn line won't be disconnected as
> long as those traffic exist.
> Once you have an interesting traffic, your router needs to know where to
> route the traffic. (you can use whatever method, static floating, dialer
> watch etc). Now that the router has a next-hop address, dialer-map comes
> into play by mapping the next-hop
> addres to the ISDN circuit.
>
> I got a few setup with only one side having dialer-string and no there has
> been no problem so far. There was even a case when only one end is having
> dialer-list and dialer string, and the other has nothing just a definition
> of the dialer. Of course the
> line would get disconnected every 300 seconds by the router that has no
> dialer-group (since it dont' see any reason why it should keep it up since
> there is no interesting traffic anyway and naturally idle-timeout would
> disconnect the line).
>
> Try to change it using the new form of dialer configuration and get rid of
> the dialer-map. Your problem is you are using dialer-map with no number.
So
> when the called router try to put the packet to ISDN frame it will fail
( it
> got no number to refer to),
> you won't get into this problem is you're using dialer string.
>
> <calling router>
> hostname calling
> int dialer 1
> encap ppp
> ip addr 1.1.1.1 255.255.255.252
> dialer pool 1
> dialer-group 1
> dialer remote-name called
> dialer string x.x.x.x
> exit
> dialer-list 1 protocol ip permit
>
> <called router>
> hostname called
> int dialer 1
> encap ppp
> ip addr 1.1.1.2 255.255.255.252
> dialer pool 1
> dialer-group 1
> dialer remote-name calling
> exit
> dialer-list 1 protocl ip permit
>
>
>
> Donny
>
>
>
>
> Jim Phillipo
> <jim.phillipo@gua To:
> ccielab@groupstudy.com
> rdent.com> cc:
> "'brian@cyscoexpert.com'" <brian@cyscoexpert.com>, (bcc: Donny
> Sent by:
> MATEO/ADPC/ASIA/BANQUE_INDOSUEZ/FR)
> nobody@groupstudy Subject: ISDN Question
> .com
>
>
> 07/29/2003 10:04
> AM
> Please respond to
> Jim Phillipo
>
>
>
>
>
>
> I was always under the ASSUMPTION that the dialer group and dilaer list
were
> only for bringing up the link (interesting traffic). I am working on a lab
> that requires only one side to make a call.
>
> Until I put the dialer commands on the called router it would not work. I
> would connect but I would get the dreaded encapsulation failed message.
>
> Is this the correct operation ?
>
> I did have my dialer map on the called router with the dial number left
out.
>
> TIA
>
>
> JIm
>
> Jim Phillipo, CCNP, CCDP
> Sr. Internetworking Engineer
> W: 401.456.1821 F: 401.456.0599 M: 508.982.8923
> 90 Royal Little Drive, Providence, RI 02904
> www.guardent.com
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