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Cc: Matthew Seaman <matthew@FreeBSD.org>, freebsd-questions@freebsd.org
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On 30/07/2013 15:04, Zyumbilev, Peter wrote:

> However really not sure what is the best way - the only feasible
> solution I found so far is DNS faiolver
> http://www.dnsmadeeasy.com/services/dns-failover-system-monitoring/.
> However I am not 100% sure how well it will work and if this may cause
> more troubles and embarrassment in front of the customer than simply
> giving them  in a email
>
> gate1.example.com(primary)
> gate2.example.com(backup)

I thought pfsense supported failover - or is that limited to outgoing?
http://doc.pfsense.org/index.php/File:RouterDiagram.png
http://www.techvilleottawa.org/pfsense-load-balance-fail-over-setup/

Otherwise something like wackamole or heartbeat to keep the ip address 
alive?