[c-nsp] DHCP and HSRP

[Mike Louis]

If you configure the ip dhcp data base command to write to a common share, say a tftp share for example, you could prevent the ip address conflicts. The dhcp database is used by the local dhcp server to determine the state of the leases that the dhcp server has handed out. If you do not configure a dhcp server, i believe the leases are retained in RAM. If you reboot a switch with leases in RAM then you will have dhcp conflicts when the switch reboots and starts handing out dhcp in a scope that it thinks has an open lease pool. Thats how i have seen it work.

HTH

Mike

________________________________________
From: cisco-nsp-bounces at puck.nether.net [cisco-nsp-bounces at puck.nether.net] On Behalf Of Teller, Robert [RTeller at deltadentalwa.com]
Sent: Wednesday, September 03, 2008 6:40 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] DHCP and HSRP

Is it possible to configure two 6509's to share DHCP information so that
if the active HSRP router goes down and the standby comes up it doesn't
generate a bunch of ip conflicts? Or do I need to maintain a separate
scope on each HSRP member?



Robert Teller
Washington Dental Service
Network Administrator
(206) 528-2371
RTeller at DeltaDentalWa.com <mailto:RTeller at DeltaDentalWa.com>




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