From: Hansang Bae (hbae@xxxxxxxxxx)
Date: Sat Feb 09 2002 - 02:00:11 GMT-3
At 02:48 PM 2/8/2002 -0500, Przemyslaw Karwasiecki wrote:
>According to cisco documentation if one has enabled
>policy routing on specific interface, route-map referenced
>in "ip policy route-map <name>" is "executed" before routing
>table is consulted.
>If this is a case, is it possible to use "match ip next-hop"
>criteria in such route-maps?
>Origin of my question can be traced to CCBootCamp lab 1.
>One of the objective is to provide spoke to spoke connectivity
>without L2 maps but use policy routing instead.
>Origianal solution use huge access list, enumerating all routes
>behind spoke routers. This is IMHO not very elegant and scalable.
>I would rather prefer to use something like this:
>
>route-map SPOKES_VIA_HUB permit 10
> match ip next-hop 100
> set ip next-hop 10.10.1.1
>
>access-list 100 permit ip any 10.10.0.0 0.0.255.255
>
>But how router will know next-hop without consulting
>routing table first?
Your last sentence is right on. Blurb from the upcoming
comp.dcom.sys.cisco FAQ:
route-map RouteMeBaby permit 10
!To whom shoud this policy apply to?
match ip address 1
!
!Where should you redirect it to? Should use both. If one is
!omitted, the value will be retrived from the routing table -
!which may or may not be what you wanted
!
set ip next-hop ROUTER_2's_SERIAL_IP
set interface s0
hsb
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