Configuring DHCP for PXE booting

Unanswered Question
Apr 24th, 2007
User Badges:


I'm trying to set up some thin clients to boot from a TFTP server. DHCP is controlled on our network by a 3825 router. As I understand it (I've never set up thin clients before) in order for the terminals to boot from the TFTP server they need to get the address for the TFTP server from the DHCP server. I'm not sure what commands I have to input into the router in order to point the thin clients to the TFTP server. I believe I have to set up a DHCP reservation?

Thanks for any help.


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
mohammedmahmoud Tue, 04/24/2007 - 23:52
User Badges:
  • Green, 3000 points or more

Hi there,

If your router is running the DHCP and you which to point your clients to the tftp server x.x.x.x you should add one of the following lines in the DHCP pool configuration (i actually don't remember is it option code 066 or 150):

option 066 ip x.x.x.x


option 150 ip x.x.x.x

HTH, please rate if it does help,

Mohammed Mahmoud.

vettiyattil.par... Wed, 04/25/2007 - 01:35
User Badges:


you can use option 150 command. Pl find example

ip dhcp excluded-address


ip dhcp pool IPNET1



option 150 ip

here is TFTP server address




This Discussion