From: micsoniu@telus.net
Date: Tue Jun 22 2004 - 14:53:40 GMT-3
I think that NAT and a static route both on R5 is the solution....
Since IRDP does not "understand" OSPF I don't see how can be used
However, as Scott mentioned in a previous email, the best way to find out is
to test it ... which is what I will do shortly.
Narcis
Quoting ccie2be <ccie2be@nyc.rr.com>:
> PBR, default network, static routes etc. were explicitly prohibited for
> this
> task.
>
> From the posts I've seen so far, it looks like NAT can be used and possibly
> irdp, but I'm not sure irdp would work.
>
>
> ----- Original Message -----
> From: "Alexander Arsenyev (GU/ETL)" <alexander.arsenyev@ericsson.com>
> To: "'Group Study'" <ccielab@groupstudy.com>
> Sent: Tuesday, June 22, 2004 1:06 PM
> Subject: RE: Routing without routing protocol
>
>
> > I believe PBR on Cat3550 also suits the requirement, never tried it
> myself
> though.
> > It is supported from IOS 12.1(13)EA1 , see
>
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12113ea1/ol366401.htm
#89520
> > Given that Cisco introduces new features into R&S lab 6 months after
> general release (see
> http://www.cisco.com/warp/public/625/ccie/rs/lab_exam_blueprint.html ) You
> are very likely to see Cat3550 with IOS supporting PBR in actual lab.
> >
> > HTH,
> > Cheers
> > Alex
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > ccie2be
> > Sent: 22 June 2004 17:45
> > To: Larry; 'MMoniz'; 'Group Study'
> > Subject: Re: Routing without routing protocol
> >
> >
> > Yeah, ip routing on the Cat was a required condition of the task. Based
> on
> > the other posts, I feel safe in saying that what they were looking for
> was
> > Nat, but I'm still open to the posibility that irdp could meet the
> > requirements, although I'm not yet 100% convinced.
> >
> >
> > ----- Original Message -----
> > From: "Larry" <groupstudy@american-hero.com>
> > To: "'ccie2be'" <ccie2be@nyc.rr.com>; "'MMoniz'"
> <ccie2002@tampabay.rr.com>;
> > "'Group Study'" <ccielab@groupstudy.com>
> > Sent: Tuesday, June 22, 2004 12:39 PM
> > Subject: RE: Routing without routing protocol
> >
> >
> > > From my experience you will need to disable ip routing on the 3550, and
> > just
> > > enable irdp under the ethernet interface.
> > >
> > > The question is are you allowed to disable routing on the 3550? I know
> you
> > > said it was enabled, but does it have to stay enabled?
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > > ccie2be
> > > Sent: Tuesday, June 22, 2004 11:00 AM
> > > To: MMoniz; Group Study
> > > Subject: Re: Routing without routing protocol
> > >
> > > OK, Mike. Maybe you're on to something, but...
> > >
> > > there's only basically one command, ip irdp.
> > >
> > > Using that one command, how do I make R5 generate irdp messages as
> opposed
> > > to just listening for those messages. And, likewise with the 3550, how
> do
> > I
> > > make the 3550 listen for irdp instead of sending them?
> > >
> > > Thanks, Tim
> > > ----- Original Message -----
> > > From: "MMoniz" <ccie2002@tampabay.rr.com>
> > > To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study"
> <ccielab@groupstudy.com>
> > > Sent: Tuesday, June 22, 2004 11:32 AM
> > > Subject: RE: Routing without routing protocol
> > >
> > >
> > > > Actually you would need to enable IRDP on R5 so it will produce IRDP
> > > > messages. The Cat will listen to these
> > > > as it will be the client.
> > > >
> > > > IRDP has the capability to "intercept" rip and igrp messages but this
> is
> > > not
> > > > a requirement.
> > > >
> > > > IRDP actually uses ICMP for messaging as the name implies. Here is a
> > link
> > > > for it.
> > > >
> > > >
> > >
> >
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr
> > > > _c/ipcprt1/1cfipadr.htm#1001945
> > > >
> > > > Mike
> > > >
> > > > -----Original Message-----
> > > > From: ccie2be [mailto:ccie2be@nyc.rr.com]
> > > > Sent: Tuesday, June 22, 2004 11:17 AM
> > > > To: MMoniz; Group Study
> > > > Subject: Re: Routing without routing protocol
> > > >
> > > >
> > > > Hey Mike,
> > > >
> > > > Option isn't allowed - the instructions explicitly told me to enable
> ip
> > > > routing on the 3550.
> > > >
> > > > Re: irdp. I thought of that this morning but I thought if irdp were
> > used,
> > > it
> > > > would have to be on the 3550. However, since there's no routing
> > protocol
> > > > running on the link between the 3550 and R5, there wouldn't be any
> > routing
> > > > updates to listen for.
> > > >
> > > > Also, if I remember correctly, irdp only listens for rip or igrp
> updates
> > > and
> > > > only ospf is running on R5.
> > > >
> > > > I think there's still something else I'm missing.
> > > >
> > > > Thanks, I'm sure I'll find out, Tim
> > > >
> > > > ----- Original Message -----
> > > > From: "MMoniz" <ccie2002@tampabay.rr.com>
> > > > To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study"
> > <ccielab@groupstudy.com>
> > > > Sent: Tuesday, June 22, 2004 10:28 AM
> > > > Subject: RE: Routing without routing protocol
> > > >
> > > >
> > > > > Well I would say you have basically 2 options here.
> > > > >
> > > > > 1. Use IRDP on R5
> > > > >
> > > > > 2. Disable IP routing on the Cat and configure a default-gateway.
> This
> > > is
> > > > > not a static route or a static network!!
> > > > >
> > > > > Mike
> > > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
> Of
> > > > > ccie2be
> > > > > Sent: Tuesday, June 22, 2004 10:10 AM
> > > > > To: Group Study
> > > > > Subject: Routing without routing protocol
> > > > >
> > > > >
> > > > > Hi All,
> > > > >
> > > > > This one got me.
> > > > >
> > > > > 3550 has routing enabled but no routing protocols enabled.
> > > > >
> > > > > It's only path to the rest of the network is via R5. All other
> > routers
> > > on
> > > > > the
> > > > > other side of R5 must be able to ping the 3550's loopback.
> > > > >
> > > > > I'm allowed to use one static route on R5.
> > > > >
> > > > > This is what it looks like:
> > > > >
> > > > > 3550 lo0 fa0/5 ------- e0/1 R5 ----- rest of network
> > > > >
> > > > > How do I provide reachabiltiy to the 3550's lo0 without violating
> lab
> > > > rules
> > > > > ie
> > > > > no default routes or default networks and
> > > > > no static routes except the one explicitly allowed here?
> > > > >
> > > > > Please tell me what I'm missing. Thanks, Tim
> > > > >
> > > > >
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