From: Walter Chen (wchen@xxxxxxxxx)
Date: Mon May 28 2001 - 16:49:19 GMT-3
ISDN is always tricky, so be careful. I guess you have a policy conflict on
your bri interface. One side you have ospf demand circuit, and also an
access list which denies ospf traffic. Demand circuit means after the
circuit comes up, no hello packets. Your access list means no ospf hello to
bring up the circuit at all. Now when you use ping to bring up the circuit,
what do you expect the router will proceed? If you debug your ospf event
and also do a "show ip ospf nei" I fancy your ospf adjancency is stuck
somewhere which may also prevent you from pinging the other side. Just a
guess. I haven't tried your way, but if you configure demand circuit, then
you shouldn't use the access list for dialer-list.
Walter
----- Original Message -----
From: <MARIOLIS@OPTONLINE.NET>
To: Guy Farber <gfarber@cisco.com>
Cc: <ccielab@groupstudy.com>
Sent: Monday, May 28, 2001 1:22 PM
Subject: Re: ISDN ISSUE
> i did it makes no difference again with a map statement on both routers
isdn
> link comes up but cannot ping throu either side
> with dialer map on only one of the routers at least that one router brings
> up the link and passes traffic
> mike
> ----- Original Message -----
> From: Guy Farber <gfarber@cisco.com>
> To: <MARIOLIS@OPTONLINE.NET>
> Sent: Monday, May 28, 2001 2:16 PM
> Subject: RE: ISDN ISSUE
>
>
> > It's not an authentication or multilink issue. Try and add names to the
> maps
> > corresponding with the hostname of the router on the other side.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > MARIOLIS@OPTONLINE.NET
> > Sent: Mon, May 28, 2001 7:04 PM
> > To: Guy Farber; ccielab@groupstudy.com
> > Subject: Re: ISDN ISSUE
> >
> >
> > Im not using authentication so i dont see this as the problem (i tried
it
> > anyway did not make a difference)also i am not using multilink
> >
> > Mike
> >
> >
> > ----- Original Message -----
> > From: Guy Farber <gfarber@cisco.com>
> > To: <MARIOLIS@optonline.net>; <ccielab@groupstudy.com>
> > Sent: Monday, May 28, 2001 1:20 PM
> > Subject: RE: ISDN ISSUE
> >
> >
> > > Sounds like you forgot to put the "name" parameter on the map
> statements.
> > > Check out "show dialer" you could find that when you open a connection
> you
> > > have 2 channels open. If that is the case you have 1 channel on each
> > router
> > > doing simplex to the other side... That's because the routers don't
know
> > > where they are connected to.
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > > MARIOLIS@OPTONLINE.NET
> > > Sent: Mon, May 28, 2001 4:35 PM
> > > To: ccielab@groupstudy.com
> > > Subject: ISDN ISSUE
> > >
> > >
> > > I am having a problem geting this senerio to work.. as configured
below
> > only
> > > one router can initiate the call and bring up the ISDN link (R2 the
one
> > with
> > > the dial map statment) as it should . however when i add a dial map
> > statment
> > > to R1 so both routers can bring up the ISDN link the following hapens:
> > >
> > > when either router attempts to ping accross link the ISDN connection
is
> > > established(link comes up) but i am not able to ping throu from either
> > > side(nor does ospf traffic pass)
> > > if i remove one of the dial map statments from one of the routers (as
i
> > did
> > > below ) r2 brings up the link and all ip traffic is passed as it
should
> > > (including ospf updates)from either direction
> > >
> > > can someone tell me what I'm missing????
> > >
> > > R1 <===========ISDN===========>R2
> > >
> > > R1
> > > interface BRI0
> > > ip address 172.168.65.1 255.255.255.0
> > > encapsulation ppp
> > > ip ospf network broadcast
> > > ip ospf demand-circuit
> > > isdn spid1 7326038427100
> > > isdn spid2 7326038784100
> > > dialer idle-timeout 129
> > > dialer-group 10
> > > hold-queue 75 in
> > >
> > > ip route 0.0.0.0 0.0.0.0 172.168.65.2 130
> > > ip route 172.168.65.2 255.255.255.255 BRI0 130
> > > access-list 101 deny ospf any any
> > > access-list 101 permit ip any any
> > > dialer-list 10 protocol ip list 101
> > >
> > >
> > > R2
> > > interface BRI0
> > > ip address 172.168.65.2 255.255.255.0
> > > encapsulation ppp
> > > ip ospf network broadcast
> > > isdn spid1 73260301370101
> > > isdn spid2 73260304260101
> > > dialer map ip 172.168.65.1 broadcast 6038427
> > > dialer-group 10
> > > hold-queue 75 in
> > >
> > > ip route 172.168.60.0 255.255.255.0 172.168.65.1 130
> > > access-list 101 deny ospf any any
> > > access-list 101 permit ip any any
> > > dialer-list 10 protocol ip list 101
> > >
> > > Mike
> > > **Please read:http://www.groupstudy.com/list/posting.html
> > > **Please read:http://www.groupstudy.com/list/posting.html
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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