From: omoruyi usuanlele (omo_u@xxxxxxxxx)
Date: Fri Sep 15 2000 - 11:50:48 GMT-3
Also ensure you have the ip classless global command
on your routers.
--- yujianchun <stiff.yu@datacraft-asia.com> wrote:
> pls use redistribute connect and summary address,
> I can get it work.
> -----Original Message-----
> From: Geatti <geatti@home.com>
> To: ccielab@groupstudy.com <ccielab@groupstudy.com>
> Date: 13 September 2000 23:40
> Subject: Last few days before exam, OSPF
> --->classful protocol question
>
>
> >Just the last few days of cramming here until my
> lab.
> >I have a question about OSPF and Classless routing
> protocols such as IGRP.
> >
> >Consider the scenario below.
> >
> > ---------------------\ /----------------
> > \ /
> > \ /
> >10.10.20.128/25 \ /
> 10.10.30.0/24
> > | )( |
> > |---------R1----------R2-----------R3--------|
> > | )( |
> > OSPF AREA 0 / \ IGRP 100
> > / \
> > / \
> > ---------------------/ \-----------------
> >
> >3 routers, R1, R2 and R3. R2 is performing mutual
> redistribution between
> >IGRP and OSPF.
> >We are using different masks, IGRP is a /24 and
> OSPF a /25.
> >My question is this, is there any way of getting
> routes from OSPF into
> IGRP?
> >As I understand,
> >
> >1. We must get the mask down to /24 for IGRP to
> even look at it as it won't
> >cope with VLSM.
> >2. Normally you could summarize into area 0 with
> the area range command but
> >as we are in area 0 with this route we are out of
> luck there.
> >3. The only way I know of doing this is
> > a. Use the ip default-network and point it to a
> glassful net other than
> >your own. (still a default route)
> > b. Create a static route on R2 for 10.10.20.0/24
> and redistribute that
> >static into IGRP. (A static route)
> >
> >Is there any way other than what I have mentioned
> above of doing this? I
> >would really appreciate any cool walk arounds for
> this situation. The
> >easiest thing to do would be to change the area of
> this route so we could
> >summarize it down to /24, however I am looking for
> a solution that doesn't
> >involve changing the area. I'm not sure there is a
> solution to this
> >situation but there's a lot of smart people on this
> board so who knows.
> >
> >
>
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