best version for new failover setup?

sthaug at sthaug at
Tue Sep 6 20:59:13 UTC 2011

> What is the recommended version for a new failover setup?  We tend to like
> to be off the leading edge on this kind of stuff around here; stability
> trumps new features and being up-to-the-minute.  Any reason to STOP using
> isc-dhcpd-V3.0.5-RedHat ?  That's what I'm running now.  Any failover bugs
> back in the 3's?


> I recall a while back hearing of some kind of issue with 4 and failover that
> was resolved by going back to 3, but can't find it in the archives.  So if I
> were to upgrade from 3.0.5 I'm leaning toward DHCP 3.1-ESV-R3 .  Any reason
> I should prefer DHCP 4.1-ESV-R3 instead?

3.x has no support for DHCPv6. 4.x does. Is DHCPv6 important for you?

Steinar Haug, Nethelp consulting, sthaug at

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