From: Volkov, Dmitry (Toronto - BCE) (dmitry_volkov@xxxxxxxxx)
Date: Wed Jun 12 2002 - 16:27:47 GMT-3
Sorry It was mistake in config I provided in previous e-mail.
It should be like that (question is still the same):
1st) situation:
R2#
int lo10
ip address 152.100.100.1 255.255.255.0
!
router ospf 30
network 152.1.2.0 0.0.0.255 area 1
redistribute igrp 64 metric 20 subnets
!
router igrp 64
network 152.11.0.0
redistribute ospf 30 metric 10000 100 255 1 1500
network 152.100.0.0 - DIFFERENCE !!!
R1 & R3 - are both seeing network 152.100.x.x !!! (type O E2 on R1 and "I"
on R3) --
Everything is fine and no questions.
2nd) situation:
R2#
!
router ospf 30
network 152.1.2.0 0.0.0.255 area 1
redistribute igrp 64 metric 20 subnets
!
router igrp 64
!
network 152.11.0.0
redistribute ospf 30 metric 10000 100 255 1 1500
redistribute connected metric 10000 100 255 1 1500 route-map loopback --
DIFFERENCE !!!
NO network 152.100.0.0 - DIFFERENCE !!!
!
route-map looopback permit 10
match interface Loopback10
-----Original Message-----
From: Volkov, Dmitry (Toronto - BCE)
Sent: Wednesday, June 12, 2002 3:10 PM
To: 'Giveortake@aol.com'; 'Michael Canfield'; '. .';
'ccielab@groupstudy.com'
Subject: RE: OSPF redistribution
Ok. Probaly my question was not clear, sorry.
Again:
R1 (ospf 30) --------R2(ospf 30 / igrp 64) -----------R3 (igrp 64)
Loopback10=152.100.100.1/24 on R2
on R2 - mutual redistr OSPF / IGRP
The difference between two situation:
1st situation: IGRP is running on Looback interface (R2)
2nd situation: Loopback network is redistributed to IGRP (as connected) on
the same router where is mutual OSPF/IGRP redistribution happen
In both cases OSPF is NOT running on Loopback interface.
In BOTH cases R3 knows Loopback network
In the first case : R1 (pure OSPF router) knows Loopback network (as
external O E2) - which is fine
In the second case R1 doesn't see it - I DON'T KNOW WHY ...
There is NO Classful/classles issue in this case, because R3 always knows
about Loopback network. (I don't worry about R3 ;)
My concern is - R1 (ospf router) which doesn't see Loopback network in the
2nd situation (case)
I did it on several routers with different networks - it always like that.
It looks like it supposed to be like that.
I just do not understand WHY ?
I ommited irrelevant commands.
1st) situation:
R2#
int lo10
ip address 152.100.100.1 255.255.255.0
!
router ospf 30
network 152.1.2.0 0.0.0.255 area 1
redistribute igrp 64 metric 20 subnets - DIFFERENCE !!!
!
router igrp 64
network 152.100.0.0 - DIFFERENCE !!!
network 152.11.0.0
R1 & R3 - are both seeing network 152.100.x.x !!! (type O E2 on R1 and "I"
on R3) --
Everything is fine and no questions.
2nd) situation:
R2#
!
router ospf 30
network 152.1.2.0 0.0.0.255 area 1
redistribute igrp 64 metric 20 connected route-map loopback - DIFFERENCE
!!!
!
router igrp 64
NO network 152.100.0.0 - DIFFERENCE !!!
network 152.11.0.0
!
route-map looopback permit 10
match interface Loopback10
R3 knows network 152.100.x.x ; R1 doesn't know ???
Dmitry-
-----Original Message-----
From: Giveortake@aol.com [mailto:Giveortake@aol.com]
Sent: Wednesday, June 12, 2002 12:31 PM
To: dmitry_volkov@ca.ml.com
Subject: Re: OSPF redistribution
In a message dated 6/12/2002 11:21:21 AM Eastern Daylight Time,
dmitry_volkov@ca.ml.com writes:
R1 & R3 have knowledge about 152.100.x.x. (R1 got external route via
redistr)
2) situation
R2#router igrp 64
redistribute connected metric 10000 100 255 1 1500 route-map loopback
R3 knows about 152.100.x.x. and R1 - DOESN'T KNOW- WHY ??
Above you say R1 & R3 both do and do not know the 152.100.x.x Which router
really doesn't konw the 152.100.x.x.
R2 will know it for sure cause its directly connected..
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