From: Gary Duncanson (gary.duncanson@googlemail.com)
Date: Wed Jul 11 2007 - 12:01:47 ART
Antonio,
Try redistributing ospf into eigrp on R2 and just use one no default
information in command. Does that make any difference?
Gary
----- Original Message -----
From: "Antonio Soares" <amsoares@netcabo.pt>
To: "'Ben'" <bmunyao@gmail.com>; "'Gary Duncanson'"
<gary.duncanson@googlemail.com>
Cc: <ccielab@groupstudy.com>; "'Salau, Yemi'" <yemi.salau@siemens.com>
Sent: Wednesday, July 11, 2007 2:03 PM
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
>> >> > >
>> >> > >
>> >> _______________________________________________________________________
>> >> > > Subscription information may be found at:
>> >> > > http://www.groupstudy.com/list/CCIELab.html
>> >>
>> >> _______________________________________________________________________
>> >> Subscription information may be found at:
>> >> http://www.groupstudy.com/list/CCIELab.html
>> >
>> > _______________________________________________________________________
>> > Subscription information may be found at:
>> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:40 ART