[alcatel-nsp] Advertising prefixes to BGP peer.

[Phil Bedard]

You would need to get the customer to advertise them as /24s or if the
customer is okay with it you could create /24 null routes and advertise
those, but the as-path would originate with your ASN and not the
customers... 

Phil 

On 12/13/10 2:46 PM, "Tan Shao Yi" <tansy at tansy.org> wrote:

>Hi,
>
>I wanted to add that I am actually receiving those prefixes as larger
>/23s from a customer, but I am trying to advertise them as specific
>/24s in a bid to shift incoming traffic through different BGP
>neighbours.
>
>Regards.
>
>On Tue, Dec 14, 2010 at 3:43 AM, Tan Shao Yi <tansy at tansy.org> wrote:
>> Hi Thedin, James,
>>
>> Thanks. Would these show up in "show router bgp neighbour X
>> advertising-protocol"?
>>
>> The policy statement is specified in the "export" section of the bgp
>> group config. I added a couple of /24s exacts to MY-SPECIFIC-PREFIXES,
>> however, they never seem to show up in "advertising-protocol".
>>
>> Adding "protocol bgp" didn't seem to make a difference.
>>
>> Am I doing something wrong?
>>
>> Regards.
>>
>> On Tue, Dec 14, 2010 at 3:24 AM, James Jones <james at freedomnet.co.nz>
>>wrote:
>>> Yea I would try that.
>>>
>>> On 13/12/10 2:20 PM, Thedin Guruge wrote:
>>>
>>> Hi,
>>> yeah i don't see why not,
>>> you could also try
>>>                entry 80
>>>                    from
>>>                        protocol bgp
>>>                        prefix-list "MY-SPECIFIC-PREFIXES"
>>>                    exit
>>>                    action accept
>>>                    exit
>>>                exit
>>> Thanks
>>> Thedin
>>>
>>> On Tue, Dec 14, 2010 at 8:10 AM, Tan Shao Yi <tansy at tansy.org> wrote:
>>>>
>>>> Hi,
>>>>
>>>> I have been trying to advertise specific prefixes to another BGP but
>>>> to no success.
>>>>
>>>> Would an entry like the following in the policy work?
>>>>
>>>>                entry 80
>>>>                    from
>>>>                        prefix-list "MY-SPECIFIC-PREFIXES"
>>>>                    exit
>>>>                    action accept
>>>>                    exit
>>>>                exit
>>>>
>>>>
>>>> Thanks in advance.
>>>>
>>>> Regards.
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>>>
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>>
>
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