[Outages-discussion] Internet Outage Hits Time Warner Customers in southern California - now up

[Frank Bulk]

Do you configure your relay points to relay to both DHCP servers, so that
you have transparent resiliency?

Frank

-----Original Message-----
From: Dan White [mailto:dwhite at olp.net] 
Sent: Monday, August 29, 2011 11:16 AM
To: Frank Bulk
Cc: 'Jay Ashworth'; outages-discussion
Subject: Re: Internet Outage Hits Time Warner Customers in southern
California - now up

Yes. We have a pair of ISC DHCP failover servers that are IPd in different
subnets. We use the relay IP of the request to identify which pool to serve
the addresses from.

- Dan

On 29/08/11 10:59 -0500, Frank Bulk wrote:
>I wonder, can ISC's dhcp failover support operating the DHCP servers in
>different subnets?
>
>Frank
>
>-----Original Message-----
>From: outages-discussion-bounces at outages.org
>[mailto:outages-discussion-bounces at outages.org] On Behalf Of Jay Ashworth
>Sent: Monday, August 29, 2011 10:33 AM
>To: outages-discussion
>Subject: Re: [Outages-discussion] Internet Outage Hits Time Warner
Customers
>in southern California - now up
>
>----- Original Message -----
>> From: "Frank Bulk" <frnkblk at iname.com>
>
>> I don't understand how they could lose a DHCP server/cluster, unless
>> it wasn't designed with HA in mind.
>
>Neither did we.  It wasn't politically correct for them to say so, but
>even the *support guys* didn't understand how it could happen.
>
>Cheers,
>-- jra
>-- 
>Jay R. Ashworth                  Baylink
>jra at baylink.com
>Designer                     The Things I Think                       RFC
>2100
>Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover
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