From: Jason Viera (jasonviera@avenuecable.com)
Date: Thu Nov 06 2003 - 13:01:53 GMT-3
Try "debug ip ospf lsa-generation"
HTH Jason
----- Original Message -----
From: "Pun, Alec CL" <Alec.CL.Pun@pccw.com>
To: "R&S Groupstudy" <rsg@synergy-networking.co.uk>; "gs (E-mail)"
<ccielab@groupstudy.com>
Sent: Thursday, November 06, 2003 7:39 AM
Subject: RE: OSPF that keeps ISDN UP
> how can I know if there is a topology change ?
> I use debug ip ospf monitor but can't see anything useful.
>
> There is only single redistribution point and should not have any
route-loop
> in the remote ends
>
>
> -----Original Message-----
> From: R&S Groupstudy [mailto:rsg@synergy-networking.co.uk]
> Sent: Thursday, November 06, 2003 10:45 PM
> To: Pun, Alec CL; gs (E-mail)
> Subject: RE: OSPF that keeps ISDN UP
>
>
> has your remote router got a topology change / router redistribution
> adverisement going on?
> just because you disable HELO's, if there's a topology change, the router
> will bring up the link
>
> Adam
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Pun, Alec CL
> Sent: 06 November 2003 14:39
> To: gs (E-mail)
> Subject: OSPF that keeps ISDN UP
>
>
> Hi group,
>
> I have already used ip ospf demand-circuit on the BRI0 and didn't observe
> any OSPF hello across the ISDN. However, I still got the following OSPF
> packet (224.0.0.5) from my remote router which keep my ISDN line UP all
the
> time. Any idea what it is ?
>
> regards,
> alec
>
> debug ip ospf packets
>
> 17:16:28: OSPF: rcv. v:2 t:4 l:208 rid:153.3.6.6
> aid:0.0.0.56 chk:796 aut:0 auk: from BRI0/0
> 17:16:28: OSPF: rcv. v:2 t:4 l:208 rid:153.3.6.6
> aid:0.0.0.56 chk:8798 aut:0 auk: from Serial0/0.1
> R5#
> 17:16:34: OSPF: rcv. v:2 t:4 l:208 rid:153.3.6.6
> aid:0.0.0.56 chk:208C aut:0 auk: from BRI0/0
>
>
> interface BRI0/0
> ip address 153.3.56.5 255.255.255.0
> encapsulation ppp
> ip ospf demand-circuit
> dialer idle-timeout 60
> dialer map ip 153.3.56.6 name R6 broadcast 8358662
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 0835866101 8358661
> isdn spid2 0835866301 8358663
> no peer neighbor-route
> ppp authentication pap
> ppp pap sent-username R5 password 0 cisco
> end
>
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