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dhcp server on IOS 12.3 and 12.4

I have run into a very odd issue with DHCP servers on IOS routers. A previously configured DHCP pool serving pubic/routable address (for a voice network) stopped responding to DHCPREQUEST packets.. doing a show ip dhcp server statistics, it shows 1 pool and many DHCPREQUESTs but no DHCPOFFER packets. After I thoroughly checked VLAN assignments and that the phones were coming in on the proper interface we set up NAT and created a private address pool.. and then the router started responding to DHCPREQUEST packets.

we disabled dhcp conflict logging as well..

has anyone seen similar behavior before?

this was both on a 2621 running 12.3.21 and an 1841 running 12.4.10a

1 REPLY
Anonymous
N/A

Re: dhcp server on IOS 12.3 and 12.4

After upgrading IOS to version 12.4 on 2621 this trouble seems to disappear.Refer URL for more information

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t1/easyip2.htm#wp4363.

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