From: Curtis Call (curtiscall@xxxxxxxx)
Date: Tue May 22 2001 - 00:08:07 GMT-3
Are you doing the Fatkid 501 lab? In that case throw a summary-address on
the EIGRP-OSPF router, the EIGRP has a /28 passive route in it's topology
so if you summarize it down to a /24 you can use that to inject into
IGRP. Of course, if you aren't allowed to inject an LSA 5 into the OSPF
routing domain then you are effectively screwed, but in the Fatkid lab
there is no such restriction (in fact that would prevent the lab from
working in the first place).
At 08:45 PM 5/21/01, you wrote:
>Can someone tell me the right way of redistributing the /28 network which is
>in backbone area however the frame backbone uses a different /28 subnet, And
>the /28 network i need to redistribute in igrp is not direclty connected to
>asbr, If redistribute connected is wrong then i am real scared
>
>Thanks in advance
>
>Sandro
>
>
>
>
>----- Original Message -----
>From: "cao lingwei" <caolw@fosco.com.cn>
>To: <sandyccie@yahoo.com>
>Sent: Monday, May 21, 2001 10:42 PM
>Subject: Re: another redistribution question
>
>
> > In real lab I redistribute connected,the procotor tell me
> > the answer is wrong,because i changed the ospf database,
> > I have no answer,I know only that reditribute connected
> > is wrong...
> > ----- Original Message -----
> > From: "Sandro Ciffali" <sandyccie@yahoo.com>
> > To: <caolw@fosco.com.cn>
> > Sent: Tuesday, May 22, 2001 10:19 AM
> > Subject: Re: another redistribution question
> >
> >
> > > could you pls. be more specific???
> > >
> > > Sandro
> > > ----- Original Message -----
> > > From: "cao lingwei" <caolw@fosco.com.cn>
> > > To: "Sandro Ciffali" <sandyccie@yahoo.com>;
> > > <ccielab@groupstudy.com>
> > > Sent: Monday, May 21, 2001 9:47 PM
> > > Subject: Re: another redistribution question
> > >
> > >
> > > > redistribute connected is wrong,because it will
> > > change the ospf
> > > database.....
> > > > ----- Original Message -----
> > > > From: "Sandro Ciffali" <sandyccie@yahoo.com>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Tuesday, May 22, 2001 9:05 AM
> > > > Subject: Re: another redistribution question
> > > >
> > > >
> > > > > Here are my two cents on the topic classless to
> > > > > classful redistribution.
> > > > > I am assuming the ASBR running ospf and igrp has
> > > same
> > > > > major network and subnets /24 for igrp and /28 for
> > > > > ospf, Ospf backbone is area 0 with a multipoint
> > > > > network to the other two and point to point to
> > > router
> > > > > running igrp
> > > > > So when you configure IGRP on this ASBR, the OSPF
> > > > > interface (/28) is also running igrp in passive
> > > mode.
> > > > > Now on this router when you say summary address
> > > > > x.x.x.x mask It assumes you are summarizing IGRP
> > > > > routes being redistributed into OSPF, The summary
> > > > > addresses works fine this way, If you check
> > > routing
> > > > > tables of the other ospf spokes you would see this
> > > > > summary route as E2 route (they would have /28 as
> > > > > attached and /24 as E2 summary). Then OSPF
> > > > > redistributes this route back in IGRP fine. This
> > > is
> > > > > kind of confusing, Since summary address is
> > > generated
> > > > > from redistributed route from igrp and then this
> > > > > summary address is redistributed back in igrp, but
> > > it
> > > > > works fine. This works only for ASBR for no other
> > > ospf
> > > > > router. Atleast i don't know any simpler way than
> > > > > this. For router other than asbr the best way is
> > > to
> > > > > redistribute connected or someway of brining these
> > > > > routes external and summarize them.
> > > > >
> > > > > Thanks
> > > > > Sandro
> > > > > ----- Original Message -----
> > > > > From: "garry baker" <fallow46@yahoo.com>
> > > > > To: "David Anderson" <dma@cisco.com>; "Roman
> > > Rodichev"
> > > > > <rodic000@hotmail.com>
> > > > > Cc: <ccielab@groupstudy.com>
> > > > > Sent: Sunday, May 20, 2001 11:31 PM
> > > > > Subject: RE: another redistribution question
> > > > >
> > > > >
> > > > > > David,
> > > > > >
> > > > > > you could try a second ospf process and
> > > redistribute
> > > > > > your main process into your second and then use
> > > the
> > > > > > summary-address command and redistribute the
> > > second
> > > > > > process into igrp. i did something like this
> > > > > recently
> > > > > > but i had to redistribute both ospf processes to
> > > get
> > > > > > all my /24 routes into igrp, not too sure why i
> > > had
> > > > > to
> > > > > > do that, does anyone have any ideas?
> > > > > >
> > > > > > Garry
> > > > > > --- David Anderson <dma@cisco.com> wrote:
> > > > > > > Roman,
> > > > > > > I tried the area 0 range on one of the routers
> > > > > that
> > > > > > > was one hop away from
> > > > > > > the ASBR. However the ASBR is also part of
> > > area 0
> > > > > > > and I cant seem to get
> > > > > > > the summary route to show up in the ASBR or
> > > any of
> > > > > > > the routers. Any
> > > > > > > ideas? I am going to try again and just see
> > > if I
> > > > > > > missed something.
> > > > > > > Thanks,
> > > > > > > David
> > > > > > > At 09:45 PM 5/20/2001 -0500, Roman Rodichev
> > > wrote:
> > > > > > >
> > > > > > > >Where did you see that command?! I don't
> > > think it
> > > > > > > exists. :) Summarization
> > > > > > > >doesn't make any sense under IGRP. It is
> > > > > classful.
> > > > > > > >
> > > > > > > >ip summary-address can only be done for EIGRP
> > > and
> > > > > > > RIPv2
> > > > > > > >
> > > > > > > >roman
> > > > > > > >
> > > > > > > >
> > > > > > > >>From: "Gregory W. Posey Jr."
> > > > > <gposey@conects.com>
> > > > > > > >>Reply-To: "Gregory W. Posey Jr."
> > > > > > > <gposey@conects.com>
> > > > > > > >>To: "David Anderson" <dma@cisco.com>,
> > > > > > > <ccielab@groupstudy.com>
> > > > > > > >>Subject: RE: another redistribution question
> > > > > > > >>Date: Sun, 20 May 2001 22:17:39 -0400
> > > > > > > >>
> > > > > > > >>I believe you use the "summary-address"
> > > command
> > > > > > > when summarizing between
> > > > > > > >>OSPF and another routing protocol.
> > > > > > > >>
> > > > > > > >>The "area range" command is for when you
> > > > > summarize
> > > > > > > from one area to the next
> > > > > > > >>(on an ABR) within OSPF.
> > > > > > > >>
> > > > > > > >>To summarize from one protocol (e.g. EIGRP)
> > > into
> > > > > > > OSPF, use the
> > > > > > > >>"summary-address" command under the OSPF
> > > > > > > "config-router" mode.
> > > > > > > >>
> > > > > > > >>For your situation (summarizing from OSPF
> > > into
> > > > > > > another routing protocol), if
> > > > > > > >>IGRP acts the same as EIGRP, then you
> > > configure
> > > > > it
> > > > > > > under the interface
> > > > > > > >>"config-if" mode, and the command is...
> > > > > > > >>
> > > > > > > >>"ip summary-address igrp 101 X.X.X.X
> > > Y.Y.Y.Y"
> > > > > > > >>
> > > > > > > >>Of course either/both command(s) is/are
> > > > > configured
> > > > > > > on the router that runs
> > > > > > > >>both OSPF and IGRP.
> > > > > > > >>
> > > > > > > >>
> > > > > > > >>Thank you,
> > > > > > > >>Greg Posey Jr.
> > > > > > > >>CONECTS Network Analyst
> > > > > > > >>CCNP - Security Specialist
> > > > > > > >>Cisco Voice Access Specialist
> > > > > > > >>
> > > > > > > >>-----Original Message-----
> > > > > > > >>From: nobody@groupstudy.com
> > > > > > > [mailto:nobody@groupstudy.com]On Behalf Of
> > > > > > > >>David Anderson
> > > > > > > >>Sent: Sunday, May 20, 2001 9:24 PM
> > > > > > > >>To: ccielab@groupstudy.com
> > > > > > > >>Subject: another redistribution question
> > > > > > > >>
> > > > > > > >>
> > > > > > > >>Ok, here is my redistribution question:
> > > > > > > >>
> > > > > > > >>Suppose I have an OSPF area (say area 0)
> > > with a
> > > > > > > /28 mask and I am
> > > > > > > >>redistributing with IGRP which has a /24
> > > mask.
> > > > > > > Can one summarize the area
> > > > > > > >>0 using the area range command on the ASBR?
> > > I
> > > > > > > tried and could not get it
> > > > > > > >>to work. However, what I did get to work
> > > was to
> > > > > > > create a loopback on
> > > > > > > >>another router in my ospf domain using the
> > > same
> > > > > > > subnet I have in my area 0,
> > > > > > > >>but with a /24 mask and then advertised that
> > > > > into
> > > > > > > ospf and all was well on
> > > > > > > >>the IGRP router. I could ping all of my /28
> > > > > ospf
> > > > > > > interfaces. Does anyone
> > > > > > > >>have any suggestions other than this? Did I
> > > > > miss
> > > > > > > anything?
> > > > > > > >>
> > > > > > > >>Thanks everyone,
> > > > > > > >>David
> > > > > > > >>David Anderson
> > > > > > > >>Network Design Engineer
> > > > > > > >>Enterprise Solutions Architecture & Design
> > > > > > > >>(408) 853-5515
> > > > > > > >>dma@cisco.com
> > > > > > > >> | |
> > > > > > > >> ..:|||||||:...:|||||||:..
> > > > > > > >>C I S C O S Y S T E M S
> > > > > > > >>**Please
> > > > > > >
> > > read:http://www.groupstudy.com/list/posting.html
> > > > > > > >>**Please
> > > > > > >
> > > read:http://www.groupstudy.com/list/posting.html
> > > > > > >
> > > > > >
> > > > >
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