From: Pickell, Aaryn (Aaryn.Pickell@xxxxxxxxxxxxx)
Date: Mon Jun 04 2001 - 19:51:58 GMT-3
The summary routes were just one way of giving the longer match routes to
r1. You could just as easily used static routes on r1 to do it.
Bottom line is that longest match will always be best. If there are
multiple routes with the same exact prefix and mask length, then the lowest
admin distance will be used. Then the RP will pick amongst it's multiple
routes (and possibly give several routes, if it's able to.)
Aaryn Pickell - CCNP ATM, CCDP, MCSE
Senior Engineer - Routing Protocols
Getronics Inc.
Direct: 713-394-1609
Email:aaryn.pickell@getronics.com
This e-mail message and any attachments are confidential and may be
privileged. If you are not the intended recipient, please notify me
immediately by replying to this message and please destroy all copies of
this message and attachments. Thank you.
> -----Original Message-----
> From: McCallum, Robert [mailto:Robert.McCallum@let-it-be-thus.com]
> Sent: Monday, June 04, 2001 5:28 PM
> To: 'Roman Rodichev'; McCallum, Robert; Pickell, Aaryn;
> jmuruchi@yahoo.com; ccielab@groupstudy.com
> Subject: RE: Administrative distance
>
>
> yeah but do you have ip subnet zero OR no ip classless OR
> access list 100
> permit any any doom , access list deny any any stupid routing
> decisions.
>
> On a serious note what happens if you don't summarise. I
> cant try it as I
> am sat in a hotel room for the next week. Hence why I am
> still on line at
> this time. I am normally well in bed by now!
>
> -----Original Message-----
> From: Roman Rodichev [mailto:rodic000@hotmail.com]
> Sent: 04 June 2001 23:16
> To: Robert.McCallum@let-it-be-thus.com; Aaryn.Pickell@getronics.com;
> jmuruchi@yahoo.com; ccielab@groupstudy.com
> Subject: RE: Administrative distance
>
>
>
> Aaryn is right
>
> try this funny scenario:
>
> R1--R2
>
> both run EIGRP
>
> R1 interface is 192.168.0.1/24
> R2 interface is 192.168.0.2/24
>
> now put ip summary-address eigrp X 192.168.0.0
> 255.255.255.128 on R1's
> interface, R2 will no longer be able to ping local interface
>
> Roman
>
> >From: "McCallum, Robert" <Robert.McCallum@let-it-be-thus.com>
> >Reply-To: "McCallum, Robert" <Robert.McCallum@let-it-be-thus.com>
> >To: "'Pickell, Aaryn'" <Aaryn.Pickell@getronics.com>,
> "'Juan Carlos
>
> >Muruchi'" <jmuruchi@yahoo.com>, ccielab@groupstudy.com
> >Subject: RE: Administrative distance
> >Date: Mon, 4 Jun 2001 22:51:39 +0100
> >
> >Shoot me down in flames now if need be BUT I am having a lapse in
> >concentration i.e. too late at night.... the rules of route
> picking... is
> >it
> >not directly connected b4 longest match? or does longest
> match win overall?
> >I am sure it is the latter but my brain is now questioning
> me as if I am
> >wrong !!!!
> >
> >-----Original Message-----
> >From: Pickell, Aaryn [mailto:Aaryn.Pickell@getronics.com]
> >Sent: 04 June 2001 20:56
> >To: 'Juan Carlos Muruchi'; ccielab@groupstudy.com
> >Subject: RE: Administrative distance
> >
> >
> >Not that I know of.
> >
> >You can sort of work around this, though... if you have a /24 network
> >directly connected, and you want to use a different route to
> get to that
> >segment, you can use two /25 routes in your routing table.
> That way, the
> >longest match will supercede and you'll take the other path,
> instead of the
> >directly connected.
> >
> >It's up to you to generate the two /25 routes, though.
> Statics, or inject
> >them into a routing protocol somewhere else... whatever.
> >
> >Aaryn Pickell - CCNP ATM, CCDP, MCSE
> >Senior Engineer - Routing Protocols
> >Getronics Inc.
> >Direct: 713-394-1609
> >Email:aaryn.pickell@getronics.com
> >
> >This e-mail message and any attachments are confidential and may be
> >privileged. If you are not the intended recipient, please notify me
> >immediately by replying to this message and please destroy
> all copies of
> >this message and attachments. Thank you.
> >
> >
> > > -----Original Message-----
> > > From: Juan Carlos Muruchi [mailto:jmuruchi@yahoo.com]
> > > Sent: Monday, June 04, 2001 2:36 PM
> > > To: ccielab@groupstudy.com
> > > Subject: Administrative distance
> > >
> > >
> > > Does anyone know if it is posible to change
> > > administrative distance of a directly conected
> > > network?
> > > If it is posible, how can you do it?
> > > Regards,
> > >
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