BGP conf

Wed Nov 2 01:17:47 UTC 2011

On Tue, Nov 1, 2011 at 9:01 PM, Edward avanti <edward.avanti at gmail.com> wrote:
> many example seem
> insecure no prefix list so on.
...
> I am not ignorant with cisco 7201, but am total newby to BGP.

Your concern about a lack of any prefix-lists in the documentation /
examples you have read is justified.  If you are connecting to an IX
it may offer route-servers which have prefix-lists maintained by the
IX staff and tools.  However, as you may already know, you will only
receive the "best path" to each prefix from an IX route-server.  This
is often a motive (among others) to establish direct eBGP sessions
with other IX members.  Once you start doing that, you had better
filter routes from those neighbors, or you will subject your network
to your peers' mistakes and glitches.

If you imagine that the IX has other members like yourself, who also
do not know much about BGP, then you can understand why you do not
want your peers' mistakes to cause outages on your network.

Doing a "cut, replace, and paste" from online examples is obviously a
bad idea.  If I were you, I would find a local consultant (perhaps
someone on the staff of the IX or another member) who can assist you
with your initial configuration, and help you in the event of a severe
emergency.  Otherwise, frankly, you are going to be better off by just
buying transit from Verizon and being single-homed.  The added
complexity of BGP is not an asset to an organization that doesn't have
adequate expertise.

-- 
Jeff S Wheeler <jsw at inconcepts.biz>
Sr Network Operator  /  Innovative Network Concepts