From: Mannan Venkatesan (venkat_m@xxxxxxx)
Date: Thu Apr 19 2001 - 10:43:07 GMT-3
I did search there and archive before posting this question....
----- Original Message -----
From: "Casassa, Nathan" <ncasassa@gnilink.net>
To: "'Mannan Venkatesan'" <venkat_m@ins.com>; <jconnary@cisco.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, April 18, 2001 10:46 PM
Subject: RE: summary-address in ospf and redistribution
> check www.precept.com
>
> -----Original Message-----
> From: Mannan Venkatesan [mailto:venkat_m@ins.com]
> Sent: Wednesday, April 18, 2001 10:30 PM
> To: jconnary@cisco.com
> Cc: ccielab@groupstudy.com
> Subject: summary-address in ospf and redistribution
>
>
> Oops, typo : I missed 'redistribute ospf 10 metric 1000 100 255 1 1500'
> command while typing this email....
>
> Thanks,
> Mannan
>
> ----- Original Message -----
> From: "Mannan Venkatesan" <venkat_m@ins.com>
> To: "Connary, Julie Ann" <jconnary@cisco.com>
> Cc: <nobody@groupstudy.com>
> Sent: Wednesday, April 18, 2001 10:14 PM
> Subject: Re: summary-address in ospf and redistribution
>
>
> > Hi,
> > I was trying this scenario. Have a question for you. Where did you use
> > route-map? When I used route-map on the redistribution router, the
summary
> > route( 170.100.2.0 ->null0) disappeared from the routing table and I
> > couldn't ping OSPF networks from IGRP router.
> >
> > IGRP IGRP/OSPF
> > Area 0 OSPF Area 1
>
-------------------R1------------------------R2--------------------------
> -R
> > 3----------------------R4--
> > 170.100.1.0/24 170.100.4.0/25 170.100.2.4/30
> > /29, /28, /30 networks
> >
> >
> > R2 Config:
> > router ospf 10
> > summary-address 170.100.2.0 255.255.255.0
> > redistribute igrp 10 metric-type 1 subnets route-map sum
> > network 170.100.2.4 0.0.0.3 area 0
> > !
> > router igrp 10
> > network 170.100.0.0
> > !
> > no ip classless
> > access-list 1 permit 170.100.2.0 0.0.0.255
> > route-map sum deny 10
> > match ip address 1
> > !
> > route-map sum permit 20
> > !
> >
> > I could able to filter that E1 route on R3 by using distribution-list
in.
> > But the OSPF database still had that E1 route which is the normal
behavior
> > of OSPF.
> >
> > I would like to filter it on the redistribution router. Any advice?
> >
> > Thanks,
> > Mannan
> >
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "Connary, Julie Ann" <jconnary@cisco.com>
> > To: <SherefMohamed@cdh.org>
> > Cc: <ccielab@groupstudy.com>; <nobody@groupstudy.com>
> > Sent: Tuesday, January 23, 2001 12:31 PM
> > Subject: Re: summary-address in ospf and redistribution
> >
> >
> > I tested a similar theory with route-maps and worked
> > like a champ.
> > Beware - the fatkid lab posted solution
> > (http://www.fatkid.com/html/501_expert_redistribution_-_ro.html)
> > does not use route-maps - and the posted routing tables - however
> reflect
> > that route-map were used.
> >
> > Julie Ann
> >
> > At 09:55 AM 1/23/2001 -0600, SherefMohamed@cdh.org wrote:
> >
> > >You need to do mutual redistribution between OSPF and IGRP,
> > >the idea is to not allow IGRP send back to OSPF the summary address !
> > >Here is how I will do it:
> > >
> > >!
> > >router igrp 2
> > >..........
> > >distribute-list 10 out ospf
> > >..........
> > >!
> > >router ospf 1
> > >...........
> > >distribute-list 11 out igrp
> > >...........
> > >!
> > >
> > >access-list 10 deny 170.10.2.0 0.0.0.255
> > >access-list 10 permit 0.0.0.0 255.255.255.255
> > >!
> > >access-list 11 permit 172.10.2.0 0.0.0.255
> > >access-list 11 deny 0.0.0.0 255.255.255.255
> > >
> > >Please test it & tell me how it works !
> > >
> > >Thanks
> > >Sheref
> > >
> > >
> > >
> > >
> > >
> > >
> > > "Connary,
> > >
> > > Julie
> > > Ann" To: ccielab@groupstudy.com
> > >
> > > <jconnary@cis cc:
> > >
> > > co.com> Subject: summary-address
in
> > > ospf and redistribution
> > > Sent
> > > by:
> > >
> > > nobody@groups
> > >
> > > tudy.com
> > >
> > >
> > >
> > >
> > >
> > > 01/23/2001
> > >
> > > 08:37
> > > AM
> > >
> > > Please
> > >
> > > respond
> > > to
> > >
> > > "Connary,
> > >
> > > Julie
> > > Ann"
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >Hi All,
> > >
> > >I ran across a practice lab and another fat-kid lab that use the ospf
> > >summary-address to overcome
> > >vlsm to fsm issues when redistributing ospf into igrp:
> > >
> > >
> > >
> > >situation: The ospf connected interface has a longer mask than the IGRP
> > >connected interface.
> > > area-range does not work because it is on the
same
> > >router.
> > >
> > > The Fatkid lab - expert redistribution - solves this with
a
> > >summary-address.
> > >
> > >Question - does this not inject E2 routes back into your OSPF domain?
> > >
> > >
> > >OSPF area 2
> > >170.10.128.4 - 255.255.255.192
> > >|
> > >|
> > >|
> > >R4 -----------IGRP - 170.10.2.4 255.255.255.0
> > >
> > >To redistribute the ospf interface into IGRP a summary-address is
> > >used: summary-address 170.10.128.0 255.255.255.0
> > >
> > >But then in the ospf domain you get an E2 route to 170.10.128.0 in
your
> > >ospf domain.
> > >
> > >So how do you prevent this E2 route into OSPF - can you filter it?
> > >
> > >Thoughts?
> > >
> > >remember - no static, no default.
> > >
> > >Julie Ann
> > >
> > >
> > >
> > >
> >
>------------------------------------------------------------------------
> > > Julie Ann Connary
> > > | | Network Consulting Engineer
> > > ||| ||| Federal Support Program
> > > .|||||. .|||||. 13635 Dulles Technology
> Drive,
> > >Herndon VA 20171
> > > .:|||||||||:.:|||||||||:. Pager:
> > 1-888-642-0551
> > > c i s c o S y s t e m s Email: jconnary@cisco.com
> > >
> >
>------------------------------------------------------------------------
> > ------------------------------------------------------------------------
> > Julie Ann Connary
> > | | Network Consulting Engineer
> > ||| ||| Federal Support Program
> > .|||||. .|||||. 13635 Dulles Technology
Drive,
> > Herndon VA 20171
> > .:|||||||||:.:|||||||||:. Pager: 1-888-642-0551
> > c i s c o S y s t e m s Email: jconnary@cisco.com
> >
> > ------------------------------------------------------------------------
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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