Re: redist from eig to ospf in gns3

Jack,

200.200.1.3 is the link-state ID which does not have to be the network
address. Host bits get set in the link-state ID to allow the same network to
be transmitted with different masks by the same router. Consider this
example:

R2 learns 200.0.0.0/25 and 200.0.0.0/26 via EIGRP.
R2 redistributes EIGRP into OSPF.
Each network requires a type-5 LSA and the LSA ID must be unique (because
the LSA type and advertising router are the same)
To create the unique ID, the host bits are all set to 1 (I don't know if
this is standard or just Cisco's way of doing it).

In this case I have 3 200.0.0.0 networks with 3 masks, the LSA IDs turned
out as follows:

R1#sho ip osp database | inc 200.0.
200.0.0.0 2.2.2.2 191 0x80000002 0x007AD3 0
200.0.0.31 2.2.2.2 95 0x80000001 0x008748 0
200.0.0.63 2.2.2.2 196 0x80000001 0x00854A 0

On Tue, Apr 13, 2010 at 2:37 PM, Jack <ccie.unnumbered_at_gmail.com> wrote:

> Dear Group:
>
>
> How can a route 200.200.1.0/30 in EIGRP being redistributed into OSPF
> becoming 200.200.1.3 on the same router (R1) ???
>
> router ospf 1
> redist eig 100 sub
>
> sh ip eig 100 top
> P 200.200.1.0/30, 1 successors, FD is 156160
> via 150.1.23.254 (156160/128256), FastEthernet0/0
>
> sh ip ospf data
> Type-5 AS External Link States
> 200.200.1.3 1.1.1.1 185 0x80000009 0x008352 0
>
>
> I am running GNS3 with Cisco IOS Software, 3700 Software
> (C3725-ADVENTERPRISEK9-M), Version 12.4(21), RELEASE SOFTWARE (fc1)
>
>
>
>
> Thanks,
> Jack
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Bryan Bartik
CCIE #23707 (R&S, SP), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net