Re: Metric Reducing in RIP

Interesting!
I tried it out without much success.

I can see hits on my ACL:
R2#sh access-list
Extended IP access list 100
     10 permit udp any any eq rip (26 matches)

However there were no matches on my Route-Map.

R2#sh route-map
route-map RM_RIP, permit, sequence 10
   Match clauses:
     ip address (access-lists): 100
   Set clauses:
     metric +2
   Policy routing matches: 0 packets, 0 bytes

RM is applied on interface:
R2#sh run int e0
Building configuration...

Current configuration : 106 bytes
!
interface Ethernet0
  ip address 192.168.0.2 255.255.255.0
  ip policy route-map RM_RIP
  half-duplex
end

Its the correct interface because we can see the ACL counter increasing.
However RM does not show any matches and there is no change in the
route metric too.

Atle: Does this work in your LAB? Can you send the config please?

-Vijay Shekhar
CCIE(sec)#17589/CISSP/RHCE.
http://au.linkedin.com/in/vshekhar

Quoting Atle Xrn Hardarson <atle.hardarson_at_gmail.com>:

> Hi guys
>
> I believe you can achieve this with PBR as such:
>
> R1(config-route-map)#set metric ?
> +/-<metric> Add or subtract metric
> <0-4294967295> Metric value or Bandwidth in Kbits per second
> <cr>
>
> #show route-map RIP
> route-map RIP, permit, sequence 10
> Match clauses:
> ip address (access-lists): 101
> Set clauses:
> metric -10
>
> So just match the traffic with tags or ACL (UDP/520 for RIPv2 IPv4, RIPv2
> has no protocol ID) and manipulate the metric with a route-map.
>
> Cheers
> Atle Hardarson
>
>
>
> On Thu, Dec 30, 2010 at 12:21 PM, <v.shekhar_at_globalassurance.net> wrote:
>
>> I am quite amazed to see the LOOSELY worded description on Cisco Context
>> sensitive help that uses the word "Subtract".
>>
>> I never paid attention to that and only believed when i tried out myself.
>>
>> From what my experience is worth there is no easy way to reduce the metric
>> in RIP. U can take the trouble of doing that by redistributing rip to other
>> IGP and back to RIP though.
>>
>> -Vijay Shekhar
>> CCIE(sec)#17589/CISSP/RHCE.
>> http://au.linkedin.com/in/vshekhar
>>
>>
>> Quoting lijo varghese <lijoccie_at_gmail.com>:
>>
>> Hai.....
>>>
>>> How can i reduce the metric in RIP.....
>>> Is it any way to reduce hop count by using offset list ?
>>>
>>>
>>> In " cisco command "
>>>
>>> R1(config-router)# ?
>>> offset-list Add or subtract offset from RIP metrics
>>> -----------
>>>
>>>
>>> So is it used to reduce metric(Hop count) ?
>>>
>>> Is there any way to reduce hopcount in RIP without using tunnels
>>> ?.............
>>>
>>>
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Received on Fri Dec 31 2010 - 22:03:53 ART