From: Jim Ervin (eminopapa@xxxxxxxxx)
Date: Mon Jan 10 2000 - 00:39:52 GMT-3
Me too. Sometimes it works sometimes it doesn't. I
just hope that it works on Tuesday in Halifax :-)
Jim
--- Brian Best <bbest@bestsolve.com> wrote:
> Brad,
>
> Yeah. I agree that it seems that this technique
> should work. However, I
> have also experienced this problem and not had
> success with getting a
> summary-address to work in this type of situation
> (VLSM/FLSM with IGRP).
>
> Just trying to add to the mix and propose another
> solution.
>
> Regards,
>
> Brian Best
>
> > -----Original Message-----
> > From: Brad Hedlund
> [mailto:BHedlund@LifeTimeFitness.com]
> > Sent: Sunday, January 09, 2000 11:33 AM
> > To: Brian Best; ccielab@groupstudy.com
> > Cc: Darrel Hinshaw
> > Subject: RE: VLSM ---> FLSM or OSPF --> IGRP
> >
> >
> >
> > Brain,
> >
> > Your point is a good one, however I think Darrel
> has already
> > preempted that
> > issue with
> > 'summary-address 150.100.5.0 255.255.255.0' on R2,
> as you can
> > see in his
> > configurations below.
> > This will summarize routes going into and out of
> an ASBR such
> > as R2. Thus
> > R3 *should* be seeing a 150.100.5.0/24 route. ?!
> >
> > This scenario should work without an 'ip
> default-network' on R1.
> >
> > -Brad
> >
> >
> >
> > >
> > > Darrel,
> > >
> > > As I am sure you are aware, the problem lies in
> the fact that
> > > the routes to
> > > your loopback interfaces not get redistributed
> to R3 due to
> > > the classful
> > > nature of IGRP. You will see all the /24 routes
> because all
> > > the interfaces
> > > in your IGRP routing processes possess a /24
> mask. Your problem is
> > > reachability from R3 w/o the use of static
> routes.
> > >
> > > I would say that your best bet is to create
> another
> > loopback on R1 and
> > > include it in the OSPF routing process. Then on
> R2 use the ip
> > > default-network command for the route you just
> added. Make
> > > sure that you
> > > use the classful address with this command -
> don't include a
> > > subnet or it
> > > will not advertise properly.
> > >
> > > You should then see the route appear as a
> candidate default
> > > on R2 and and
> > > this will be propogated to R3. Also make sure
> that ip
> > > classless is enabled
> > > on R3.
> > >
> > > Liberal use of debug ip packet is great to see
> what is
> > happening here.
> > >
> > > Regards,
> > >
> > > Brian Best
> > > > -----Original Message-----
> > > > From: Darrel Hinshaw
> [mailto:dhinshaw@istrength.net]
> > > > Sent: Thursday, January 06, 2000 9:30 PM
> > > > To: ccielab@groupstudy.com
> > > > Subject: VLSM ---> FLSM or OSPF --> IGRP
> > > >
> > > >
> > > > All:
> > > >
> > > >
> > > > First I'm sorry for making this so long.
> > > >
> > > >
> > > >
> > > > Great deal of difficulty here. The usual
> parameter of NO
> > > > static routes of
> > > > any kind are in effect.
> > > >
> > > >
> > > > R1-->S0------(OSPF
> > >
> 0)------S0<--R2-->E0------(IGRP)------E0<--R3-->E1
> > > >
> > > > Interface Addresses:
> > > > R1/S0: 150.100.4.5/24 OSPF Area 0
> > > > R1/L0: 150.100.5.5/30 OSPF Area 0
> > > > R2/S0: 150.100.4.3/24 OSPF Area 0
> > > > R2/L0: 150.100.5.9/30 OSPF Area 0
> > > > R2/E0: 150.100.128.1/24 IGRP
> > > > R3/E0: 150.100.128.2/24 IGRP
> > > > R3/E1: 150.100.129.1/24 IGRP
> > > >
> > > > Problem: How do I distribute OSPF into IGRP on
> R2? I have
> > > > configured but I
> > > > am unable to get any 150.100.5.x addresses to
> show up in R3's
> > > > routing table.
> > > > Below are the relevant Configs.
> > > >
> > > > Router 1:
> > > >
> > > > router ospf 5
> > > > network 150.100.4.0 0.0.0.255 area 0
> > > > network 150.100.5.5 0.0.0.0 area 0
> > > > network 150.100.14.0 0.0.0.255 area 3
> > > > area 0 authentication message-digest
> > > > area 3 range 150.100.14.0 255.255.255.0
> > > > area 3 virtual-link 150.100.3.1
> > > >
> > > > Router 2:
> > > >
> > > > router ospf 5
> > > > summary-address 150.100.5.0 255.255.255.0
> > > > redistribute igrp 5 subnets route-map
> igrpn2ospf
> > > > network 150.100.4.0 0.0.0.255 area 0
> > > > network 150.100.5.9 0.0.0.0 area 0
> > > > area 0 authentication message-digest
> > > > area 0 range 150.100.4.0 255.255.255.0
> > > > area 0 range 150.100.5.0 255.255.255.0
> > > >
> > > > router igrp 5
> > > > redistribute ospf 5 metric 10000 10 255 1
> 1500 route-map
> > ospfn2igrp
> > > > passive-interface Loopback0
> > > > passive-interface Serial0
> > > > passive-interface Serial0.110
> > > > network 150.100.0.0
> > > > network 0.0.0.0
> > > >
> > > > ip classless
> > > >
> > > > access-list 1 permit 150.100.128.0 0.0.127.255
> > > > access-list 2 deny 150.100.128.0 0.0.127.255
> > > > access-list 2 permit any
> > > > !
> > > > route-map igrpn2ospf permit 10
> > > > match ip address 1
> > > > !
> > > > route-map ospfn2igrp permit 10
> > > > match ip address 2
> > > >
> > > > Router 3:
> > > >
> > > > router igrp 5
> > > > network 150.100.0.0
> > > >
> > > > ip classless
> > > >
> > > >
> > > >
> > > > ANY help would be appreciated.
> > > >
> > > >
> > > > Regards,
> > > >
> > > > Darrel Hinshaw
> > > >
> > > >
> > > >
> > > > PS If you have actually read this far . . .
> THANKS.
> > > >
> > > >
>
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