Multi-Homed Routing

[Mark Radabaugh]

> To achieve BGP feeds for both ISPs you would need to (over simplified):
>
> 1. Get an AS number that are in great shortage, so it's a real pain and
>    usually cost money, because you cant do it directly but have to go
>    through someone who already have an AS number.
>

Huh?   They are hardly difficult to get - just pay your $500 to ARIN
(http://www.arin.net - the original post was .ca I believe) and explain why
your routing policy is different from your upstreams.

> 2. You need to apply for your own address range from your LIR.

There is no problem announcing IP space from your current providers.  As a
practical matter you need at least a /24 of space.

>
> 3. Upgrade your connections to BGP peering connections at both your isp's.
>    which usually costs ALOT more than your regular internet connections.
>    You might have to hire or contract someone to configure this, make sure
>    they are available after it's configured because like everything else
>    it breaks.
>

Usually a fairly nominal one-time charge (if any) to configure BGP with your
providers.

> 4. quite possibly have to upgrade your server to handle 2 full bgp feeds
>    and hire someone to manage it. (It -does- break, like everything else)
>
> Now all this sounds easy, but is virtually unattainable for anyone but
> the ones with really deep pockets.
>

>From a guy with faily shallow pockets it's not that bad....

Mark Radabaugh
Amplex
(419) 720-3635