[c-nsp] DHCP and HSRP

Mike Louis MLouis at nwnit.com
Wed Sep 3 20:38:22 EDT 2008


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>




#########################################################
The information contained in this e-mail and subsequent attachments may be privileged,
confidential and protected from disclosure.  This transmission is intended for the sole
use of the individual and entity to whom it is addressed.  If you are not the intended
recipient, any dissemination, distribution or copying is strictly prohibited.  If you
think that you have received this message in error, please e-mail the sender at the above
e-mail address.
#########################################################
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/

Note: This message and any attachments is intended solely for the use of the individual or entity to which it is addressed and may contain information that is non-public, proprietary, legally privileged, confidential, and/or exempt from disclosure.  If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited.  If you have received this communication in error, please notify the original sender immediately by telephone or return email and destroy or delete this message along with any attachments immediately.



More information about the cisco-nsp mailing list