Re: BGP Route-Map Incoming Updates

Thanks garry to clear doubt on it.

i checked again and found same info as you provided .Many thanks!

On Tue, Aug 17, 2010 at 12:20 PM, garry baker <baker.garry_at_gmail.com> wrote:

> what docuement was it?
>
> i have seen that alot of old documents for older IOS versions keep getting
> quoted alot, and then like you did when you labbed it you see that it is
not
> the case, at least in *that* version of IOS...
>
> check this quote out:
>
> "In Cisco IOS. Software releases earlier than Cisco IOS Software Release
> 11.2, when you use route maps to filter BGP updates rather than
redistribute
> between protocols, you *cannot* filter on the inbound when you use a *
> match* command on the IP address. A filter on the outbound is acceptable.
> Cisco IOS Software Release 11.2 and later releases do not have this
> restriction."
>
>
>
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800c95bb.
shtml#routemaps
>
> --
> Garry L. Baker
>
> "There is no 'patch' for stupidity." - www.sqlsecurity.com
>
>
> On Tue, Aug 17, 2010 at 2:24 PM, Rsharma <cciers09_at_gmail.com> wrote:
>
>> I was going through with one document and found below statement:
>>
>> *When using the match ip address command in BGP, you can use route maps
>> only
>> to filter outbound updates.
>> The use of a match ip address route map is not supported on inbound BGP
>> updates.*
>> **
>> somehow i failed to understand this statement and tried on lab with 2
>> routers .
>> Match ip address within route map provide options as below:
>>
>> +++++++++++++++
>> Router(config-route-map)#match ip address ?
>> <1-199> IP access-list number
>> <1300-2699> IP access-list number (expanded range)
>> WORD IP access-list name
>> prefix-list Match entries of prefix-lists
>> <cr>
>> Router(config-route-map)#match ip address
>> +++++++++++++++
>>
>> +) match ip address is able to filter inbound bgp updates .(tried with
>> prefix list and access-list)
>>
>> can somebody explain it in detail for me ???
>>
>> Thanks
>> Rsharma
>>
>>
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Received on Tue Aug 17 2010 - 13:12:11 ART