Re: exporting partial routing table

or this can be done this way: set excommunity rt <RED_VRF i.e. 1:1> in route
map

ip vrf RED
rd 1:1
route-target export 1:1
route-target import 1:2

ip vrf BLUE
rd 1:2
route-import 1:1
export map BLUE
route-target import 1:1

route-map BLUE
  match ip address 1*
  set extcommunity rt 1:1 <--- tag all 100.100.100.x subnet with RT of 1:1*

access-list 1 permit 100.100.100.0 0.0.0.255

On Tue, May 25, 2010 at 4:50 PM, Radioactive Frog <pbhatkoti_at_gmail.com>wrote:

> Thanks Tyson. Here is what I am trying to achieve and commands:
>
> export only 100.100.100.0/24 (blueVRF) routes into RED vrf
>
> ip vrf RED
> rd 1:1
> route-target export 1:1
> route-target import 1:2
>
> ip vrf BLUE
> rd 1:2
> route-import 1:1
> export map BLUE
> route-target import 1:1
>
> route-map BLUE
> match ip address 1
>
> access-list 1 permit 100.100.100.0 0.0.0.255
>
>
> now the qusetion is with below config:
> a) will it only export 100.100.100.0 subnet (acces-list 1)
>
>
> ip vrf BLUE
> rd 1:2
> route-import 1:1
> export map BLUE
> route-target import 1:1
>
> OR
>
> I still need below 3 commands to export specific route.
>
> ip vrf BLUE
> rd 1:2
> route-import 1:1
> route-export 1:2 <---------------this command +
> export map BLUE <----------this command +
> route-target import 1:1 <-----------this command
>
> thanks
>
> On Tue, May 25, 2010 at 2:50 PM, Tyson Scott
>
>
> <tscott_at_ipexpert.com> wrote:
>
>> Well if all of the routes that you want to share are only on the same
>> device
>> you could separate the VRF's with different route targets and control
>> which
>> route-targets you import between VRF's.
>>
>> If this is not the case use the import maps using any combination of
>> prefix-lists and communities you would like to accomplish the task. You
>> didn't describe much as to how the routes are originating so there could
>> be
>> other possibilities but the above should suffice.
>>
>> Regards,
>>
>> Tyson Scott - CCIE #13513 R&S, Security, and SP
>> Managing Partner / Sr. Instructor - IPexpert, Inc.
>> Mailto: tscott_at_ipexpert.com
>>
>>
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
>> Radioactive Frog
>> Sent: Monday, May 24, 2010 11:44 PM
>> To: Cisco certification
>> Subject: VRF: exporting partial routing table
>>
>> trying to find quick and easy way - What is the best way to export partial
>> routes into/between the VRF(s)
>>
>> VRF: red - 10 routes (192.168.1-10.x/24)
>> VRF; blue - 10 routes ( 193.1.1-10.x/24)
>>
>> I want only 5 routes to export from RED_vrf to Blue VRF.
>>
>> route-target export exports everything.
>>
>> I haven't tried MAP with route-export so would like to see group's openion
>> on quick way to do it.
>>
>> thanks
>>
>>
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>>
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Received on Tue May 25 2010 - 16:54:19 ART