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Re: OSPF over broadcast - drop mulitcast. posted 06/10/2004
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Thanks Mal for the information.

Regards,
Karim.

----- Original Message ----- 
From: "Malcolm Price" <malcolm.price@xxxxxxxxxxx>
To: "Karim" <karim_ccie@xxxxxxxxxxx>
Cc: <ccielab@xxxxxxxxxxxxxx>
Sent: Friday, June 11, 2004 1:42 AM
Subject: RE: OSPF over broadcast - drop mulitcast.


> Karim,
>
> I do apologise, I totally mis-read your question in relation to ethernet.
>
> I have a rack online, I'll try a few scenarios and get back to you, but
> using passive interface will block multicast and stop hellos yes. FYI,
> neighbor statements are allowed only on point-to-multipoint or NBMA
> networks.
>
>
> Regards,
> Mal
> CCIE #10607
>
>
> -----Original Message-----
> From: Karim [mailto:karim_ccie@xxxxxxxxxxx]
> Sent: 10 June 2004 23:18
> To: malcolm.price@xxxxxxxxxxx
> Cc: ccielab@xxxxxxxxxxxxxx
> Subject: Re: OSPF over broadcast - drop mulitcast.
>
>
> Mal,
>
> This would be a perfect solution for RIP because adjacency doesn't depend
on
> hello but for ospf won't the passive interface stop hello packects and in
> turn stops adjacency ??? what's your opinion ??
>
>
> Regards,
> Karim.
>
> ----- Original Message -----
> From: "Malcolm Price" <malcolm.price@xxxxxxxxxxx>
> To: "Karim" <karim_ccie@xxxxxxxxxxx>
> Cc: <ccielab@xxxxxxxxxxxxxx>
> Sent: Friday, June 11, 2004 1:08 AM
> Subject: RE: OSPF over broadcast - drop mulitcast.
>
>
> > Karim,
> >
> > I've programmed exactly the same problem using rip and that worked 100%.
> > I.e. specifying  passive ethernet interface and a unicast neighbor.
> >
> > FYI, this is what I used:
> >
> > router rip
> >  passive-interface Ethernet0
> >  network 192.168.1.0
> >  neighbor 192.168.1.100
> >  distribute-list 2 out Ethernet0
> >  distribute-list 1 in Ethernet0
> >  no auto-summary
> >
> >
> > I'd say yes, but try it first.
> >
> > Cheers,
> > Mal
> > CCIE #10607
> >
> >
> >
> > -----Original Message-----
> > From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx]On Behalf Of
> > Karim
> > Sent: 10 June 2004 21:37
> > To: ccielab@xxxxxxxxxxxxxx
> > Subject: OSPF over broadcast - drop mulitcast.
> >
> >
> > Hi all,
> >
> > Need your help in the following problem:
> >
> > Having two routers on the same ethernet segment, asked to drop multicast
> > traffic betwen the two routers. Meanwhile make sure that adjacecny will
> > still
> > established between the two routers.
> >
> > I was thinking about a passive interface on both routers but passive
> > interface
> > will drop the adjacency. So would it be solved with passive plus
neighbor
> > command on both routers ?? Any ideas ??? am I thinking in the right
> > direction
> > ??
> >
> > Thanks in advance,
> > Karim.
> >
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