RE: How to advertise default route to IGRP from OSPF

From: Stanley Seow (stanley_seow@xxxxxxxxxxxxxxxxxxx)
Date: Fri Apr 21 2000 - 04:08:48 GMT-3

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   Thanks Brad,
   
   I did not get the hint the last time I posted the question....
   
   Now I got it and it is just what the book tell us about IGRP...
   
   Stanley
   
   -----Original Message-----
   From: Brad [mailto:bjohnson@timebridge.com]
   Sent: Friday, April 21, 2000 6:35 AM
   To: 'Stanley Seow'
   Subject: RE: How to advertise default route to IGRP from OSPF
   
   due to the classful nature of igrp. You need to pick a candidate
   default network different than 135.1.0.0. Try 134.1.0.0 - put on
   loopback. then you will send an exterior route. This will show up in
   your debug
   
   -----Original Message-----
   From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
   Stanley Seow
   Sent: Thursday, April 20, 2000 4:08 PM
   To: CCIELAB
   Subject: How to advertise default route to IGRP from OSPF
   
   I've a senario where I need to configure r3 to send a default to r4
   pointing back to r3 using IGRP.
   
   
   
   I've manage to summarize and got this in the routing table :
   
   
   
   R3 routing table :
   
        135.1.0.0/16 is variably subnetted, 13 subnets, 4 masks
   C 135.1.3.0/24 is directly connected, Loopback0
   O 135.1.0.0/16 is a summary, 00:03:33, Null0
   O 135.1.6.6/32 [110/11] via 135.1.20.6, 00:03:39, Ethernet0
   O 135.1.5.5/32 [110/75] via 135.1.20.2, 00:03:39, Ethernet0
   O 135.1.2.2/32 [110/11] via 135.1.20.2, 00:03:39, Ethernet0
   
   
   
   r3 config :
   
   
   
   router ospf 100
    summary-address 135.1.0.0 255.255.0.0
    redistribute igrp 100 subnets
   
   
   
   router igrp 100
    passive-interface Ethernet0
    network 135.1.0.0
   
   
   
   r4 config :
   router igrp 100
    network 135.1.0.0
   ip default-network 135.1.0.0
   
   
   
   r4 routing table :
   
   
   
    * 135.1.0.0/24 is subnetted, 2 subnets
   I 135.1.3.0 [100/8976] via 135.1.13.3, 00:00:12, Serial0
   C 135.1.13.0 is directly connected, Serial0
   
   
   
   
   
   I got a candidate default on /24 instead of /16...
   
   I redistribute a summary address of 135.1.0.0 into IGRP but it does
   not
   
   seems to work based on the debug ip igrp ...
   
   
   
   How do I make r3 send a 135.1.0.0 as a defualt network into r4 ??
   
   
   
   Pls help.
   
   
   
   Thanks
   
   
   
   Stanley
   
   
   
   

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