From: Ryaboy Vadim (VRyaboy@xxxxxxxxxx)
Date: Thu Nov 15 2001 - 02:41:55 GMT-3
I thought if I use summarization - I don't need default network.
With summarization - there is a problem. OSPF don't summarize from area 0 to
non-zero area.
I just wonder if I can solve it using default network not summarization (on
the side note my understanding is that summarization will not work here as I
explained - I tried it - did not work and I saw messages on groupstudy
confirming it).
So, question remains - can I use default network and if yes, how?
> -----Original Message-----
> From: Chua, Parry [SMTP:Parry.Chua@compaq.com]
> Sent: Wednesday, November 14, 2001 9:39 PM
> To: Ryaboy Vadim; ccielab@groupstudy.com
> Subject: RE: default-network and igrp (classic flsm/vlsm)
>
> The Cisco CCO has a description on default n/w :
>
> http://www.cisco.com/warp/customer/105/default.html
>
> Since you are using a class B 170.10.0.0 for your topology, you can
> redistribute the
> ospf into IGRP. It all depends on how you configurae the OSPF, sinec
> R2/R5 at area 0,
> if R4/R5 at other area (eg 45), you can use area range to summaries /28
> and /26 to two /24 and then redistribute into IGRP at R4.
>
> Parry Chua
> -----Original Message-----
> From: Ryaboy Vadim [mailto:VRyaboy@acuson.com]
> Sent: Thursday, November 15, 2001 12:18 PM
> To: 'ccielab@groupstudy.com'
> Subject: default-network and igrp (classic flsm/vlsm)
>
>
> Hello,
>
> Here is the scenario:
>
>
> R2 --- R5(E0) ---(E0) R4 (S0) --- (S1)R1
>
> R4,R1 running igrp
> R4- R5 - OSPF virtual link
> R5-R2 - OSPF area 0
>
> IGRP and OSPF mutually redistributed on R4. R1 (/24) don't see
>
>
> R4 S1 170.10.15.1/24
> R4 S0 170.10.15.1/24
>
>
> R4 (e0) 170.10.11.65 / 26
> R5 (e0) 170.10.11.66 / 26
>
> R2 -- R5 Frame Relay network 170.10.10.32/28.
>
> Classic FLSM/VLSM scenario. R1 (/24) don't see R2-R5 network .
>
>
> One of few solutions (right?)- use ip classless (I have it on)
> And use ip default-network.
>
> I've put ip default-network 170.10.0.0 on R4
> All it did - it created static route in running-config: ip route
> 170.10.0.0
> 255.255.0.0 170.10.10.0
> It did not put any gateways of last resort on R4 or R1.
>
> Can I use ip default-network to solve this problem?
> And how.
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