From: Chan Hong (chan_hong33@yahoo.com)
Date: Mon Dec 10 2007 - 01:36:48 ART
RIP
- Offset-list
- distance
- distribute-list
EIGRP
- offset-list
-
distribute-list - can reference route-maps as well, but set operations not
allowed. Set operation is only allowed when referenced in re-distribution.
-
distance
--create another eigrp process id and filter the route during
redistribution + route-map
OSPF
- distribute-list - can reference
route-maps as well, but set operations not allowed. Set operation is only
allowed when referenced in re-distribution
- distance
- area id filter-list
-- area range + not advertise
--summary-address + not advertise
--create
another ospf process id and filter the route during redistribution + route-map
BGP
- route-maps
--set communit no-export, local-as(confederation),
no-advertise
--deny + match prefix/acl/as-path access-list/tag/(BGP
don't support match interface)
- distribute-list
- prefix-lists
-
as filter-lists, suppress-maps etc
--neighbor x.x.x.x capability orf +
neighbor x.x.x.x prefix-list xxxx in
--neighbor x.x.x.x advertise-map
(conditional advertisment. This maybe not under the filting scope, but it base
on a prefix to suppress other prefix)
----- 6l%s-l%s ----
1H%s$H!R Joseph
Saad <joseph.samir.saad@gmail.com>
&,%s$H Cisco certification
<ccielab@groupstudy.com>
6G0e$i4A!R 2007 &~ 12$k 7 $i ,P4A$- $U$H 12:57:19
%DCD!G Re: Router filtering mechanisms in RIP,EIGRP OSPF and BGP
in OSPF,
summarization with no-advertise can be used as a mechanism to
filter routes
from entering another area.
On Dec 7, 2007 2:52 AM, Bhaskar Sivanesan
<bas_bharath@yahoo.com> wrote:
> Hi Group
>
> I have jotted down the various
router filtering mechanisms in various
> routing protocols. Is there any
method I missed or anything wrong in my
> list.
>
> Methods of route filtering
in each routing protocol.
>
------------------------------------------------------------------------
> RIP
> - Offset-list
> - distance
> - distribute-list
>
> EIGRP
> - offset-list
> -
distribute-list - can reference route-maps as well, but set operations
> not
allowed Set
> operation is only allowed when
referenced in
> re-distribution.
> - distance
>
> OSPF
> - distribute-list -
can reference route-maps as well, but set operations
> not allowed. Set
>
operation is only allowed when referenced in
> re-distribution
> - distance
>
- area id filter-list
>
> BGP
> - route-maps
> - distribute-list
> -
prefix-lists
> - as filter-lists, suppress-maps etc
>
> Thanks
> bhaskar
>
>
>
>
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