[c-nsp] Multihoming

[Seth Mattinen]

On 9/15/10 2:26 AM, Walter Keen wrote:
>  Not many options for you I'm afraid.  Some people filter out routes
> smaller than a /24.  Even if you had a /24 from ISP1, you would then
> have to get their permission to have ISP2 advertise it.  Most aren't
> willing to do this.
> 
> Is a micro (/24) allocation from ARIN (if in the US) a possibility?  If
> so, you could then run BGP to multiple providers and make this a very
> simple configuration.  If not, you'll likely have to rely on
> application-layer redundancy.  You can prioritize MX records if you are
> hosting your mail on-site through ISP1's ip addressing (what you stated
> seemed a bit unclear), and you could probably do some round-robin DNS
> entries for web hosting, but it won't be perfect.
> 


You can now get a /24 in ARIN land if you're an end user.

https://www.arin.net/policy/proposals/2010_2.html

~Seth