Re: ISC DHCP server failover

2010-03-21 Thread David W. Hankins
On Fri, Mar 19, 2010 at 05:10:04PM -0700, Mike wrote: > With all due respect and acknowledgment of the tremendous contributions of > ISC and you yourself Mr. Hankins, I have to comment that failover in > isc-dhcp is broken by design because it requires the amount of handholding > and operator th

Re: ISC DHCP server failover

2010-03-20 Thread Leo Bicknell
In a message written on Fri, Mar 19, 2010 at 05:10:04PM -0700, Mike wrote: > I am certainly not prepared to develop proof of concept code or go the > full route of developing such a server myself, however, I belive firmly > that a failover implementation in dhcp could be designed as a > counterp

Re: ISC DHCP server failover

2010-03-20 Thread Dan White
On 19/03/10 17:10 -0700, Mike wrote: David W. Hankins wrote: On Wed, Mar 17, 2010 at 09:22:06AM -0500, Dan White wrote: The servers stop balancing their addresses, and one server starts to exhibit 'peer holds all free leases' in its logs, in which case we need to restart the dhcpd process(

Re: ISC DHCP server failover

2010-03-20 Thread sthaug
> With all due respect and acknowledgment of the tremendous contributions > of ISC and you yourself Mr. Hankins, I have to comment that failover in > isc-dhcp is broken by design because it requires the amount of > handholding and operator thinking in the event of a failure that you > explained

Re: ISC DHCP server failover

2010-03-19 Thread Mike
David W. Hankins wrote: On Wed, Mar 17, 2010 at 09:22:06AM -0500, Dan White wrote: The servers stop balancing their addresses, and one server starts to exhibit 'peer holds all free leases' in its logs, in which case we need to restart the dhcpd process(es) to force a rebalance. If re

Re: ISC DHCP server failover

2010-03-19 Thread David W. Hankins
On Wed, Mar 17, 2010 at 09:22:06AM -0500, Dan White wrote: > The servers stop balancing their addresses, and one server starts to > exhibit 'peer holds all free leases' in its logs, in which case we need to > restart the dhcpd process(es) to force a rebalance. If restarting one or both dhcpd pro

Re: ISC DHCP server failover

2010-03-17 Thread Raymond Dijkxhoorn
Hi! I am wondering if anyone has implemented the failover features of ISC DHCP? And if so, how successful has failover been in your environment? We run it on various locations and this works pretty well. Student dormitory's, and so on. Bye, Raymond.

Re: ISC DHCP server failover

2010-03-17 Thread Blake Covarrubias
On Mar 17, 2010, at 7:22 AM, Dan White wrote: > We've experienced two types of problems from time to time: > > The servers stop balancing their addresses, and one server starts to > exhibit 'peer holds all free leases' in its logs, in which case we need to > restart the dhcpd process(es) to forc

Re: ISC DHCP server failover

2010-03-17 Thread Dan White
On 17/03/10 10:01 -0400, Summers, William wrote: Greetings Nanog members, I am wondering if anyone has implemented the failover features of ISC DHCP? And if so, how successful has failover been in your environment? We've been running version 4 in a failover scenario for a couple of years. It'

Re: ISC DHCP server failover

2010-03-17 Thread sthaug
> I am wondering if anyone has implemented the failover features of ISC DHCP? > And if so, how successful has failover been in your environment? Yes, some of us have implemented DHCP failover using ISC DHCP. However, you are much more likely to get answers to ISC DHCP questions if you ask on the

ISC DHCP server failover

2010-03-17 Thread Summers, William
Greetings Nanog members, I am wondering if anyone has implemented the failover features of ISC DHCP? And if so, how successful has failover been in your environment? Many thanks, William Summers Network Administrator Information Technology Services Deerfield Academy