From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Sun Feb 24 2002 - 06:12:23 GMT-3
Your R4 with IOS, I belive the latest IOS will not allow you toe summary
from OSPF and redistribute to other routing protocols, it is not the
right way. Only when OSPF is the input process (ie redistribute into
OSPF, then summary will work).
You can either create another OSPF(2) and redistribute the OSPF(1) with
/27 to OSPF(2) and
then summary at OSPF(2) as /24. Then at IGRP, redistribute OSPF(2) .
Another way is to make R4 as ABR by create a dummy OSPF area then us
area 0 range will also work.
Regards
Parry
-----Original Message-----
From: yakoout [mailto:yesmat@iprimus.com.au]
Sent: Sunday, February 24, 2002 1:08 PM
To: erickbe@yahoo.com; ccielab@groupstudy.com
Subject: RE: Another OSPF into IGRP issue
IOS on R4 is 11.3 (11a)
IOS on R3 (IGRP) IS 12.1 (11)
-----Original Message-----
From: Erick B. [mailto:erickbe@yahoo.com]
Sent: Sunday, February 24, 2002 3:59 PM
To: yakoout; ccielab@groupstudy.com
Subject: Re: Another OSPF into IGRP issue
What version of code?
--- yakoout <yesmat@iprimus.com.au> wrote:
> Hi all,
>
> Sorry guys if the point has been killed before but I
> actually can't simulate
> the redistribution problem that every body was
> talking about for such a long
> time, in other words my scenario is working and I
> can't get it NOT to work.
>
> Scenario:
>
> SIMPLE.
> R4 running ospf AND igrp (redistributing mutually
> both ways)
> OSPF area 0 with 137.20.5.0/27.
> IGRP with 137.20.6.0/24
>
> To summarize /27 into /24 and succesfully
> redistribute into igrp, I used
> "summary-address 137.20.5.0 255.255.255.0" on R4,
> WITHOUT using
> "redistribute connected..."
>
> PROBLEM:
>
> Even though network 137.20.5.0 is NOT EXTERNAL (it
> is connected) it still
> works and I can see the summarized route in R4
> routing table to NULL0 and
> hence I can also see it in IGRP routers.
>
> What am I doing wrong?
>
> Thanks for your input
>
> Yakout
> R4:
>
> router ospf 100
> summary-address 137.20.5.0 255.255.255.0
> redistribute igrp 100 subnets
> network 137.20.5.4 0.0.0.0 area 0
> neighbor 137.20.5.5 priority 1
> neighbor 137.20.5.2 priority 5
>
> router igrp 100
> redistribute ospf 100
> passive-interface Serial0.1
> network 137.20.0.0
> default-metric 1000 1 255 255 1500
>
>
> r4#sh ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP,
> M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA
> - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF
> NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external
> type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> level-2, * - candidate
> default
> U - per-user static route, o - ODR
>
> Gateway of last resort is not set
>
> 137.20.0.0/16 is variably subnetted, 6 subnets,
> 3 masks
> C 137.20.10.4/32 is directly connected,
> Loopback1
> O IA 137.20.10.2/32 [110/65] via 137.20.5.2,
> 00:07:16, Serial0.1
> O 137.20.5.0/24 is a summary, 00:07:10, Null0
> C 137.20.5.0/27 is directly connected,
> Serial0.1
> C 137.20.6.0/24 is directly connected,
> Serial0.2
> 200.200.100.0/32 is subnetted, 1 subnets
> C 200.200.100.1 is directly connected,
> Loopback0
> 172.16.0.0/24 is subnetted, 1 subnets
> C 172.16.1.0 is directly connected, Loopback3
> C 192.168.1.0/24 is directly connected, Ethernet0
>
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