From: OhioHondo (ohiohondo@columbus.rr.com)
Date: Fri Dec 27 2002 - 03:03:35 GMT-3
I believe the problem would be the inability of a RIPv1 interface to send
updates that were in its' own classful network but not with the same subnet
mask.
To correct this problem is one of the reasons for using the range command in
the first place. If the summaries for the range command did not show up in
the routing table, they can't be used to correct the RIPv1 "not the same
subnet mask as the interface" problem.
-----Original Message-----
From: Dang Quang Minh [mailto:minhdq@saigonctt.com]
Sent: Thursday, December 26, 2002 11:05 PM
To: 'Aidan Marks'; 'OhioHondo'
Cc: 'Sage Vadi'; 'miken'; 'Tran Tien Phong'; ccielab@groupstudy.com
Subject: RE: RIPv1 effects... was RE: OSPF: remove NULL from summary
Aidan,
I think we could still use the command discard-route. In order to
overcome the problem, maybe we should specify a default-metric in RIP
for redistributed routes.
Thanks,
Dang
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Aidan Marks
Sent: Friday, December 27, 2002 4:25 AM
To: OhioHondo
Cc: Sage Vadi; miken; Tran Tien Phong; ccielab@groupstudy.com
Subject: RIPv1 effects... was RE: OSPF: remove NULL from summary
btw, the discard-route commands are incompatible when redistributing
into
RIPv1. The RIP process sees the RT entry disappear, sets the metric to
infinity and ages it out. So if you need to have ospf summaries (area x
range or summary-address) on the _same_ router that is doing RIPv1, you
will not be able to use the command if you wish to have RIPv1
see/advertise
the classful superset boundary of the classless routes.
Aidan
At 07:24 AM 27/12/2002, OhioHondo wrote:
>Sage
>
>What a "hoser" I am. I got back to my e-lab today.
>
>The "no-discard-route" command does get rid of the null routes, and any
>evidence of summarization in the routing table, on the ABR.
>
>The summarized routes show up in routers downstream from the ABR.
>
>Thanks for your comments!!
>
>
>-----Original Message-----
>From: Sage Vadi [mailto:sagevadi@yahoo.co.uk]
>Sent: Wednesday, December 25, 2002 12:05 AM
>To: miken; OhioHondo; Tran Tien Phong; ccielab@groupstudy.com
>Subject: Re: OSPF: remove NULL from summary
>
>
>Mike,
>
>As per -
>
>http://www.cisco.com/warp/public/104/3.html
>
>"In IOS 12.1(6) and higher, the discard route is
>automatically generated by default. If for any reason
>you don't want to use this discard route, you can
>configure.."
>
>Then it goes on to state no discard-route x
>
>Warm regards,
>Sage
>
>
>
>
>
> --- miken <miken@sisna.com> wrote: > What version of
>code are you guys running? 12.1(3)T
> > and 12.1(15) enterprise
> > do not accept that command and I am not able to find
> > anything on the doc cd
> > or web site referring to it either.
> >
> > Thanks,
> > Mike
> > ----- Original Message -----
> > From: "Sage Vadi" <sagevadi@yahoo.co.uk>
> > To: "OhioHondo" <ohiohondo@columbus.rr.com>; "Tran
> > Tien Phong"
> > <PhongTT2@FPT.COM.VN>; <ccielab@groupstudy.com>
> > Sent: Tuesday, December 24, 2002 7:40 PM
> > Subject: RE: OSPF: remove NULL from summary
> >
> >
> > > Ohio,
> > >
> > > On R3 summarised route entry from R4
> > >
> > > 140.140.0.0/22 is subnetted, 1 subnets
> > > O IA 140.140.0.0 [110/65] via 116.16.34.4
> > >
> > > 116.16.34.4 = R4's directly connected int/IPadd
> > >
> > > On R4 -
> > >
> > > !
> > > router ospf 1
> > > no discard-route internal <-- removes null
> > > ~ cut ~
> > > network 140.140.1.0 0.0.0.255 area 30 Summarised
> > > network 140.140.2.0 0.0.0.255 area 30 "
> > > network 140.140.3.0 0.0.0.255 area 30 "
> > > !
> > >
> > > Networks 140.140.1-3 summarised into /22 (exact
> > > summary). As per snippet from R3.
> > >
> > > Q) Are all you routes EXACT summaries?
> > >
> > > rgds,
> > > Sage
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --- OhioHondo <ohiohondo@columbus.rr.com> wrote:
> > >
> > > Sage
> > > >
> > > > When I get that lab back up, maybe this week,
> > I'll
> > > > show you the config and
> > > > the IP routing table.
> > > >
> > > > When your summaries remain, what is their next
> > hop
> > > > address???
> > > >
> > > > Thanks for your help/response.
> > > >
> > > > Happy Holidays
> > > >
> > > > -----Original Message-----
> > > > From: Sage Vadi [mailto:sagevadi@yahoo.co.uk]
> > > > Sent: Tuesday, December 24, 2002 9:25 PM
> > > > To: OhioHondo; Tran Tien Phong;
> > > > ccielab@groupstudy.com
> > > > Subject: RE: OSPF: remove NULL from summary
> > > >
> > > >
> > > > Ohio,
> > > >
> > > > I have tried this on externally distributed
> > routes
> > > > (via redistribution) and via internal (another
> > > > area).
> > > > For the externally redistributed routes I used
> > "no
> > > > discard external" and for the internal used "no
> > > > discard internal".
> > > >
> > > > They both got rid of null entries in their
> > routing
> > > > tables, and their summaries were still
> > propagated.
> > > >
> > > > So it all worked well.
> > > >
> > > > Your experience is strange and goes against the
> > > > grain.
> > > > Maybe do a bit more checking with your config
> > etc.
> > > > or
> > > > if you can post it. Or do a console log so we
> > can
> > > > see
> > > > what happens when you insert the command.
> > > >
> > > >
> > > > --- OhioHondo <ohiohondo@columbus.rr.com>
> > wrote: >
> > > > I
> > > > tried this in my lab and the "no discard-route
> > > > > internal" command deleted
> > > > > all of my "area xx range" summaries. In other
> > > > words
> > > > > it acted like a switch
> > > > > that did not allow summarization. Is this your
> > > > > experience also?
> > > > >
> > > > > (Not defining area ranges at all has the same
> > > > effect
> > > > > as using this command.)
> > > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com
> > > > > [mailto:nobody@groupstudy.com]On Behalf Of
> > > > > Tran Tien Phong
> > > > > Sent: Tuesday, December 24, 2002 3:52 AM
> > > > > To: Sage Vadi; ccielab@groupstudy.com
> > > > > Subject: RE: OSPF: remove NULL from summary
> > > > >
> > > > >
> > > > > Use the "no discard-route [internal|external]"
> > > > > command
> > > > >
> > > > > -----Original Message-----
> > > > > From: Sage Vadi [mailto:sagevadi@yahoo.co.uk]
> > > > > Sent: Tuesday, December 24, 2002 2:18 PM
> > > > > To: ccielab@groupstudy.com
> > > > > Subject: OSPF: remove NULL from summary
> > > > >
> > > > > Merry Christmas and Happy New Year!!! I can't
> > find
> > > > > anything else better to do than to play with
> > my
> > > > > routers. Such an ejoyable experience! =)
> > > > >
> > > > > My question -
> > > > >
> > > > > When using "area range" OR "summary address"
> > we
> > > > get
> > > > > destinations to NULL in our routing table.
> > > > >
> > > > > Q) Is there a way we can eliminate the
> > creation of
> > > > a
> > > > > summary route pointing to null0?
> > > > >
> > > > > Warm regards,
> > > > > Sage
> > > > >
> > > > >
> > > > >
> > > > >
> > __________________________________________________
> > > > > Do You Yahoo!?
> > > > > Everything you'll ever need on one web page
> > > > > from News and Sport to Email and Music Charts
> > > > > http://uk.my.yahoo.com
> > > > > .
> > > > > .
> > > > > .
> > > > >
> > > >
> > >
> >
>__________________________________________________________________
> > > > > To unsubscribe from the CCIELAB list, send a
> > > > message
> > > > > to
> > > > > majordomo@groupstudy.com with the body
> > containing:
> > > > > unsubscribe ccielab
> > > >
> > > >
> > __________________________________________________
> > > > Do You Yahoo!?
> > > > Everything you'll ever need on one web page
> > > > from News and Sport to Email and Music Charts
> > > > http://uk.my.yahoo.com
> > > >
> > > >
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Everything you'll ever need on one web page
> > > from News and Sport to Email and Music Charts
> > > http://uk.my.yahoo.com
> > > .
> >
>=== message truncated ===
>
>__________________________________________________
>Do You Yahoo!?
>Everything you'll ever need on one web page
>from News and Sport to Email and Music Charts
>http://uk.my.yahoo.com
>.
.
.
This archive was generated by hypermail 2.1.4 : Fri Jan 17 2003 - 17:21:53 GMT-3