From: Salau, Yemi (yemi.salau@siemens.com)
Date: Wed Jul 11 2007 - 10:13:04 ART
R2 isn't doing any redistribution, I would use this command on R3 to see
the effect. Or is R2 running 2 different EIGRP Processes? Your output
didn't suggest that to me
Many Thanks
Yemi Salau
-----Original Message-----
From: Antonio Soares [mailto:amsoares@netcabo.pt]
Sent: Wednesday, July 11, 2007 2:04 PM
To: 'Ben'; 'Gary Duncanson'
Cc: ccielab@groupstudy.com; Salau, Yemi
Subject: RE: How is default-information command under router eigrp used?
Hello group,
Been following this discussion and decided to test this. I found that
the
"no" form of the commands had no effect at all:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R1---OSPF---R3---EIGRP---R2---EIGRP---R4
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R1 generates default into OSPF
R3 redistributes OSPF into EIGRP
R2 still sees the Default route
R4 still sees the Default route
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R2(config-router)#do sh runn | b router eigrp
router eigrp 23
network 23.23.23.2 0.0.0.0
network 24.24.24.2 0.0.0.0
no default-information in
no default-information out
no auto-summary
eigrp router-id 2.2.2.2
!
ip http server
ip classless
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
R2(config-router)#
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R2(config-router)#do sh ip route eigrp
13.0.0.0/24 is subnetted, 1 subnets
D EX 13.13.13.0 [170/853846016] via 23.23.23.3, 00:00:58, Serial0/1
D*EX 0.0.0.0/0 [170/853846016] via 23.23.23.3, 00:00:58, Serial0/1
R2(config-router)#
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R4#sh ip route eigrp
23.0.0.0/24 is subnetted, 1 subnets
D 23.23.23.0 [90/2172416] via 24.24.24.2, 00:01:38,
FastEthernet0/0
13.0.0.0/24 is subnetted, 1 subnets
D EX 13.13.13.0 [170/853848576] via 24.24.24.2, 00:01:38,
FastEthernet0/0
D*EX 0.0.0.0/0 [170/853848576] via 24.24.24.2, 00:01:38, FastEthernet0/0
R4#
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Thanks,
Antonio
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ben
Sent: quarta-feira, 11 de Julho de 2007 12:31
To: Gary Duncanson
Cc: ccielab@groupstudy.com; Salau, Yemi
Subject: Re: How is default-information command under router eigrp used?
Gary, Yemi
Sorry I meant to use "no default-information out". Now I understand;
It tells R2 not to redistribute the default and any D EX from eigrp10 to
eigrp20.
I think Gary may have a point on whether it should be in or out. The
same
usage when we use distribute-list command is as follow:
access-l 1 deny 10.1.1.0
access-l 1 permit any
router eigrp 20
redistr eigrp10
distribute-list 1 out eigrp10
This is interpreted to mean that only routes permitted by ACL will be
redistributed "out" of eigrp10 to eigrp20.
Perhaps the default-information command uses the same interpretation of
direction. The usage in the scenario would then be:
router eigrp20
redistr eigrp10
no default-information out
What do you think? I don't have lab equipment for trying this out.
Ben
On 7/11/07, Gary Duncanson <gary.duncanson@googlemail.com> wrote:
>
> I wonder if it should be no default-information in.
>
> Gary
> ----- Original Message -----
> From: "Ben" <bmunyao@gmail.com>
> To: "Salau, Yemi" <yemi.salau@siemens.com>
> Cc: <dayo@ademuyiwa.com>; "Cisco certification"
> <ccielab@groupstudy.com>
> Sent: Wednesday, July 11, 2007 11:32 AM
> Subject: Re: How is default-information command under router eigrp
used?
>
>
> > Yemi,
> > Thanks for responding. Here's an attempt at putting your explanation
> into
> > a
> > scenario
> >
> >
> > 10.1.1.1 10.1.2.1 10.1.2.2
> > 10.1.3.1
> >
> ----eigrp10------(f0/0)R1(s0/0)-----------eigrp10-------------(s0/0)R2
> (f0/0)---eigrp20--
> >
> > 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 10 net
> > 10.1.2.1 0.0.0.0 net 10.1.1.1 0.0.0.0
> >
> > R2
> > int f0/0
> > ip add 10.1.3.1 255.255.255.0
> > int s0/0
> > ip add 10.1.2.2 255.255.255.0
> > router eigrp 10
> > net 10.1.2.2 0.0.0.0
> > redistr eigrp 20
> > router eigrp 20
> > net 10.1.3.1 0.0.0.0
> > redistr eigrp 10
> > no default-originate out
> >
> > R2 is receiving a default from R1 on process eigrp10, and
redistributing
> > to
> > process eigrp20. Would the use of this command as indicated then
prevent
> > R2
> > from sending the default into eigrp20? If yes, how do ACLs fit in?
> >
> > Ben
> >
> >
> > On 7/11/07, Salau, Yemi <yemi.salau@siemens.com> wrote:
> >> Normally and by default, exterior routes are always accepted and
> default
> >> information is passed between EIGRP processes when redistribution
> >> occurs. i.e you have the command turned on: "default-information
in"
> but
> >> hidden in the IOS I believe.
> >>
> >> Let's say redistributing RIP or another EIGRP Process A into
another
> >> EIGRP Process B, by default all the external routes and default
> >> information goes into the EIGRP Process B, but you can use this
command
> >> {"no default-information in/out"} to suppress or not accept
exterior or
> >> default routing information in incoming or outbound updates. In
other
> >> words, you can stop your EIGRP Process from receiving or sending
out
> >> exterior updates and default routes.
> >>
> >> Hope this helps ... :-)
> >>
> >> Many Thanks
> >>
> >> Yemi Salau
> >>
> >> -----Original Message-----
> >> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of
> >> Ben
> >> Sent: Wednesday, July 11, 2007 10:28 AM
> >> To: dayo@ademuyiwa.com; Cisco certification
> >> 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
> >> > >
> >> > >
> >>
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:40 ART