From: Igor M. (imanassypov@rogers.com)
Date: Tue Sep 23 2008 - 11:29:20 ART
Thanks Guarav,
- that sort of solved the mistery... Here:
R2#sh ip ospf database | i 178
178.2.1.0 100.100.3.3 58 0x80000001 0x00DF3C 0
178.2.3.0 100.100.3.3 58 0x80000001 0x00C950 0
178.2.5.0 100.100.3.3 58 0x80000001 0x00B364 0
R2#sh ip route | i 178
178.2.0.0/24 is subnetted, 3 subnets
O E2 178.2.1.0 [110/20] via 100.1.1.5, 00:00:00, Serial1/0.1
O E2 178.2.3.0 [110/20] via 100.1.1.5, 00:00:00, Serial1/0.1
O E2 178.2.5.0 [110/20] via 100.1.1.5, 00:00:00, Serial1/0.1
Which means the database was sourced from R3, even though next-hop points to
R5...
I guess the database instance gets installed from a router that is hop-closer
to that bunch of networks... Gotta be extra cautious with this...
Thanks guys
----------------------
I.M., M.Eng. P.Eng.
Network Architect
CI Investments
----------------------
--- On Tue, 9/23/08, GAURAV MADAN <gauravmadan1177@gmail.com> wrote:
From: GAURAV MADAN <gauravmadan1177@gmail.com>
Subject: Re: distance for neighbor under eigrp
To: "Igor M." <imanassypov@rogers.com>
Cc: "Fahad Khan" <fahad.khan@gmail.com>, ccielab@groupstudy.com
Received: Tuesday, September 23, 2008, 9:59 AM
For OSPF :
GIve "sh ip ospf database " to know the source and proceed from there
.
let us know in case this dont work
Thnx
Gaurav Madan
On Tue, Sep 23, 2008 at 7:00 PM, Igor M. <imanassypov@rogers.com> wrote:
> Since i could not make this work under eigrp, I turned to ospf for the
same
> command functionality. Ospf does allow for changing ad of selective
external
> routes, however the 'source ip' puzzles me even more - the only
source that
> works for me is the '0.0.0.0 255.255.255.255'.
> Here is my simple setup :
>
>
> R3-R2-R5-R3
> R3 pulls the '178xxx' routes from external bb.
> R3 and R2 run both eigrp and ospf, R5 runs ospf only. R2 and R3 do 2-way
> redistribution. R5 s0/0 is 100.1.1.5, and R5 RID: 100.100.5.5
>
> I need to make R2 take these routes from eigrp:
>
> O E2 178.2.1.0 [110/20] via 100.1.1.5, 00:04:52, Serial1/0.1
> O E2 178.2.3.0 [110/20] via 100.1.1.5, 00:04:52, Serial1/0.1
> O E2 178.2.5.0 [110/20] via 100.1.1.5, 00:04:52, Serial1/0.1
>
> Distance under eigrp did not work, so under ospf the two distance commands
> do not make the change:
> distance 171 100.1.1.5 0.0.0.0 ACL
> distance 171 100.100.5.5 0.0.0.0 ACL
>
> The only one that works is the 'distance 171 0.0.0.0 255.255.255.255
ACL',
> which now makes my eigrp preferrable
>
> R2#sh ip route | i 178
> 178.2.0.0/24 is subnetted, 3 subnets
> D EX 178.2.1.0 [170/2323456] via 100.1.1.34, 00:00:09, Serial1/0.2
> D EX 178.2.3.0 [170/2323456] via 100.1.1.34, 00:00:09, Serial1/0.2
> D EX 178.2.5.0 [170/2323456] via 100.1.1.34, 00:00:09, Serial1/0.2
>
> Anyone has any comments on why the ospf distance does not like the
specific
> source?
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