From: Horszczaruk Krzysztof (Krzysztof.Horszczaruk@xxxxxxxxxxxxx)
Date: Mon Aug 12 2002 - 10:24:53 GMT-3
the behaviour is absolutely correct.
you can redistribute just what is in routing table. you can NOT redistribute OS
PF topology table.
you have to have summary route in ospf routing table in order to redistribute i
t to any other protocol.
regards - Krzysztof.
>>>-----Original Message-----
>>>From: ong yong keat [mailto:ongyongk@yahoo.com]
>>>Sent: Monday, August 12, 2002 2:01 PM
>>>To: ccielab@groupstudy.com
>>>Subject: 'no discard-route external' issue
>>>
>>>
>>>hello,
>>>
>>>I tried the 2nd OSPF process solution for the OSPF to IGRP
>>>mask problem,
>>>and it works fine until I try to remove the OSPF-generated
>>>static summary
>>>to Null0 with 'no discard-route external'.
>>>
>>>With the Null0 summary gone from r1's routing table, it also stopped
>>>advertising the /24 summary into IGRP (r2).
>>>
>>>Is that the correct behaviour? If so, then this solution
>>>would not work
>>>if OSPF-generated static summaries to Null0 are not allowed...
>>>
>>>Thanks in advance for any help :)
>>>
>>>
>>> r2 [12.1(5)T5]
>>> |
>>> | IGRP 135.4.56.0 /24
>>> |
>>> r1 [12.2(1)]
>>> |
>>> | OSPF 135.4.34.0 /29
>>> |
>>>
>>>
>>>r1 config
>>>---------
>>>router ospf 1
>>> redistribute igrp 1 subnets
>>> network 135.4.34.1 0.0.0.0 area 1
>>>!
>>>router ospf 2
>>> summary-address 135.4.34.0 255.255.255.0
>>> redistribute ospf 1 subnets
>>>!
>>>router igrp 1
>>> redistribute ospf 1 metric 1000 100 200 100 1500
>>> redistribute ospf 2 metric 1000 100 200 100 1500
>>> network 135.4.0.0
>>>
>>>r1 routing table
>>>----------------
>>>O 135.4.34.0/24 is a summary, 00:00:30, Null0
>>>C 135.4.34.0/29 is directly connected, FastEthernet0/1
>>>C 135.4.56.0/24 is directly connected, FastEthernet0/0
>>>
>>>r2 routing table
>>>----------------
>>>I 135.4.34.0 [100/10110] via 135.4.56.1, 00:00:00,
>>>FastEthernet0/0
>>>C 135.4.56.0 is directly connected, FastEthernet0/0
>>>
>>>r1(config-router)#router ospf 2
>>>r1(config-router)#no discard-route external
>>>
>>>r1 routing table
>>>----------------
>>>C 135.4.34.0/29 is directly connected, FastEthernet0/1
>>>C 135.4.56.0/24 is directly connected, FastEthernet0/0
>>>
>>>r2 routing table
>>>----------------
>>>C 135.4.56.0 is directly connected, FastEthernet0/0
>>>
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