DHCP PXE IP Lease

TIM MCCLURE · ‎05-06-2010

One of my sites with a 2811router and IOS 12.3(8)T10 is configured for DHCP service leasing addresses for 30 days. When my Wyse thin client boots it requests a IP address for PXE and then for the OS. The PXE address should only lease for 5 minutes and the OS IP address lease for 30 days. However the PXE IP address is leasing for the 30 days as well. The result is I run out of addresses because each thin client holds two IP addresses.

I can take the same thin client to another location with a 2801 IOS 12.3(14)T4 and the PXE address with release in 5 minutes.

After two weeks I am clueless. Anyone have any ideas?

Reza Sharifi · ‎05-06-2010

Tom,

If the configs on both routers are exactly the same, the only thing that I can think of is a bug in the IOS that is not releasing the IP after 5 minutes.

I looked at the release notes and did fine any thing referencing it. I suggest upgrading it to the code that is working and see what happens.

HTH

Reza

lgutierrezg · ‎06-14-2012

Hello Tim, I'm a newby in this things and I think that you could help me...I have Wyse terminals also (like you) and my router Cisco 2800(here is running my DHCP) can't assign to my PXe terminal a valid IP address...so I would like to know the necessary steps to change the settings to my DHCP in order to provide, as well, a valid IP address in my network segment.

Thanks in advance & Best Regards from Chile.

Leonardo.