Re: Three protocols redistribution

From: CiscoCCNP3@xxxxxxx
Date: Thu Mar 21 2002 - 14:12:40 GMT-3


   
hiya daniel,

in order to get this to work, you would have to redistribute mutually between
all protocols on that router. a route from protocol A, redistributed into
protocol B on a single router, will not get redistributed into a third,
protocol C from protocol B, again, on the same router, ie, igrp into ospf
and then from ospf into eigrp. each protocol has to be redist as
needed/required to establish full connectivity.

having done this type of scenario many times, you have to watch out for
feedback, especially with mutliple redistribution points, so i'd use some
route-maps or dist lists to filter and only allow what you need to get in to
the other protocols.

here is a config from a router redistributing the same protocols you
mentioned, igrp, ofps and eigrp, just to give you an idea of what it might
look like, hope it helps,

igrp----fa0/1----Router--fa0/0----eigrp
                       |
                 s0/0 ospf

<only redist relative statements shown>

routerospf 6
 router-id 6.6.6.6
 redistribute connected metric 100 subnets
 redistribute bgp 200 subnets
 redistribute igrp 10 metric 100 subnets
 redistribute eigrp 100 route-map R2_LOOP
passive-interfaceFastEthernet0/0
 passive-interface FastEthernet0/1
 default-metric 100000 2000 1 1 1

router igrp 10
 redistribute connected route-map BGP
 redistribute eigrp 100 route-map R2_LOOP
 redistribute ospf 6 match internal external 1
redistribute bgp 200
 passive-interface FastEthernet0/0
 passive-interface Serial0/0

router eigrp 100
 redistribute connected
 redistribute ospf 6
 redistribute bgp 200
 redistribute igrp 10 route-map IGRP_ROUTES
 passive-interface Serial0/0
passive-interface fa0/1
 default-metric 100000 2000 1 1 1

remember when redistirbuting multiple protocols, one must filter, especially
if there are multiple redistribution points, which in ccie speak, is
something one should expect.

hope that was helpful, peace \/

19 days to go

joey r
ccnp/dp/si yada yada



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