From: Ben (bmunyao@gmail.com)
Date: Thu Jul 12 2007 - 03:41:57 ART
Looks that way. Not much utility If you ask me. In the lab though, cisco
like testing on such obscure commands.
Ben
On 7/12/07, Gary Duncanson <gary.duncanson@googlemail.com> wrote:
>
> And that's it? It only works with default routes generated by ip default
> network on the router, or on another router and redistributed into that
> router..i.e D EX
> ----- Original Message -----
> From: "Antonio Soares" <amsoares@netcabo.pt>
> To: "'Ivan'" <ivan@iip.net>; <ccielab@groupstudy.com>; "'Gary Duncanson'"
> <gary.duncanson@googlemail.com>
> Cc: "'Ben'" <bmunyao@gmail.com>; <dayo@ademuyiwa.com>; <mmma@gawab.com>
> Sent: Wednesday, July 11, 2007 9:57 PM
> Subject: RE: How is default-information command under router eigrp used?
>
>
> > Yes, i've confirmed that these commands only work for the *D or *D EX
> > candidates default routes generated by the "ip default-network x.x.x.x"
> > command.
> >
> > Thanks.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Ivan
> > Sent: quarta-feira, 11 de Julho de 2007 16:25
> > To: ccielab@groupstudy.com; Gary Duncanson
> > Cc: Ben; dayo@ademuyiwa.com; mmma@gawab.com
> > Subject: Re: How is default-information command under router eigrp used?
> >
> > "no default-information originate" doesn't affect on the 0.0.0.0 any
> way.
> > This
> > command used to permit or deny "default route" wich marked "*". Such
> route
> > can be created
> > ip default-network x.x.x.x
> >
> > So try this on a lab:
> > R1:
> > R1(config)#int lo 0
> > R1(config-if)#ip address 1.1.1.1 255.255.255.0
> > R1(config)#ip default-network 192.192.192.0
> > R1(config)#ip route 192.192.192.0 255.255.255.0 1.1.1.100
> > R1#sh ip route | i Gate|S\*
> > Gateway of last resort is 1.1.1.100 to network 192.192.192.0
> > S* 192.192.192.0/24 [1/0] via 1.1.1.100
> >
> >
> > R1 --- (eigrp) --- R2
> > R1 redistribute static
> >
> > R2:
> > R2#sh ip route | i Gate|\*
> > ia - IS-IS inter area, * - candidate default, U - per-user static
> > route
> > Gateway of last resort is 192.168.12.1 to network 192.192.192.0
> > D*EX 192.192.192.0/24 [170/156160] via 192.168.12.1, 00:02:34,
> > FastEthernet0/0
> > ^^^
> > "*" means - use this route as default.
> >
> > R2#conf t
> > R2(config)#router eigrp 100
> > R2(config-router)#no default-information in
> > R2#clear ip eigrp neighbors
> > *Jul 11 19:23:45.427: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> > 192.168.12.1 (FastEthernet0/0) is down: manually cleared
> > *Jul 11 19:23:45.823: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> > 192.168.12.1 (FastEthernet0/0) is up: new adjacency
> > R2#sh ip route | i Gate|\*
> > ia - IS-IS inter area, * - candidate default, U - per-user static
> > route
> > Gateway of last resort is not set
> > ^^^
> > Here we see that default route is disappear.
> >
> >
> >
> > On Wednesday 11 July 2007 14:41, Gary Duncanson wrote:
> >> Ben,
> >>
> >> I haven't played with this myself.
> >>
> >> Perhaps it's used when you want to control the default you will learn
> >> from
> >> a peer in the same AS. From the terminology in the command reference it
> >> seems to allude to uses when you have two diifferent EIGRP AS's and
> want
> >> some measure of control.
> >>
> >> default-information
> >> To control the candidate default routing information between IGRP or
> >> EIGRP
> >> processes, use the default-information command in router configuration
> >> mode. To suppress IGRP or EIGRP candidate information in incoming or
> >> outbound updates, use the no default-information in command.
> >>
> >> default-information {in | out} {access-list-number | name}
> >>
> >> no default-information {in | out}
> >>
> >> ----- Original Message -----
> >> From: "Ben" <bmunyao@gmail.com>
> >> To: "Mohamed M Moustafa" <mmma@gawab.com>
> >> Cc: <dayo@ademuyiwa.com>; "Cisco certification" <ccielab@groupstudy.com
> >
> >> Sent: Wednesday, July 11, 2007 11:16 AM
> >> Subject: Re: How is default-information command under router eigrp
> used?
> >>
> >> > Thank you Mohamed.
> >> >
> >> > You are quite right that eigrp does not use "default-information
> >> > originate"
> >> > command. Instead you redistribute a static default, or use the
> >> > interface
> >> > "ip
> >> > summary-add eigrp 100 0.0.0.0 0.0.0.0" command.
> >> >
> >> > The command I'm struggling with is "default-information in|out acl".
> >> >
> >> > Here is a scenario:
> >> >
> >> >
> >> > 10.1.1.1 10.1.2.1 10.1.2.2
> >> >
> >
> ----eigrp--------(f0/0)R1(s0/0)-----------eigrp----------------(s0/0)R2--
> >> >--------rip----------
> >> >
> >> > R1
> >> > int f0/0
> >> > ip add 10.1.1.1 255.255.255.0
> >> > int s0/0
> >> > ip add 10.1.2.1 255.255.255.0
> >> > ip summary-add eigrp 100 0.0.0.0 0.0.0.0
> >> > router eigrp 100
> >> > net 10.1.2.1 0.0.0.0
> >> > net 10.1.1.1 0.0.0.0
> >> >
> >> > R2
> >> > int s0/0
> >> > ip add 10.1.2.2 255.255.255.0
> >> > router eigrp 100
> >> > net 10.1.2.2 0.0.0.0
> >> >
> >> > In the above scenario R2 will accept the default route from R1. What
> >> > circumstance would require us to use the "default-information in acl"
> >> > command then?
> >> >
> >> > Ben
> >> >
> >> > On 7/11/07, Mohamed M Moustafa <mmma@gawab.com> wrote:
> >> >> Hi,
> >> >>
> >> >> EIGRP don't utilize the default-information originate command, to
> >> >> advertise
> >> >> default information --> add the default route statically and the do
> >> >> redistribution.
> >> >>
> >> >> Normally, exterior/default routes are always accepted and default
> >> >> information is passed between EIGRP processes when redistribution
> >> >> occurs. when doing so, we still need to confirm the following
> command
> > to
> >> >> either allow the sending or receiving of a default route (allowed by
> >> >> default):
> >> >>
> >> >> Router(config-router)#default-information ?
> >> >> allowed Allow default information
> >> >> in Accept default routing information
> >> >> out Output default routing information
> >> >>
> >> >>
> >> >> HTH,
> >> >> Mohammed Mahmoud.
> >> >>
> >> >> Ben <bmunyao@gmail.com> wrote on 11 Jul 2007, 12:27 PM:
> >> >> Subject: Re: How is default-information command under router eigrp
> > used?
> >> >>
> >> >> >Dayo,
> >> >> >
> >> >> >Thanks for responding.
> >> >> >
> >> >> >In eigrp, the syntax for this command is:
> >> >> >
> >> >> >router eigrp 100
> >> >> > default-information {allowed[in|out]|in|out [acl]}
> >> >> >
> >> >> >I'm having trouble figuring out how to use it, and scenarios that
> >> >> > apply.
> >> >> >
> >> >> >Ben
> >> >> >
> >> >> >On 7/11/07, dayo@ademuyiwa.com <dayo@ademuyiwa.com> wrote:
> >> >> >> Do you mean default information originate?
> >> >> >>
> >> >> >> On 7/11/07, Ben <bmunyao@gmail.com> wrote:
> >> >> >> > Hi
> >> >> >> >
> >> >> >> > I cann't seem to make sense of how to use the
> > "default-information"
> >> >> >>
> >> >> >> command
> >> >> >>
> >> >> >> > under EIGRP. Does anyone here have examples of its usage that
> > might
> >> >> >
> >> >> >help
> >> >> >
> >> >> >> me
> >> >> >>
> >> >> >> > digest this command.
> >> >> >> >
> >> >> >> > TIA
> >> >> >> >
> >> >> >> > Ben
> >> >>
> >> >>
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