DHCP Options

Unanswered Question
Jan 22nd, 2009
User Badges:

I have a 1760 router running 12(3)24 IPBase. I am having trouble adding a command to my DHCP pool. I need to add the command: option 66 ascii "Pano Logic" to the DHCP pool. Unfortunately, the router won't let me put a space between Pano and Logic. If i put an underscore or dash it works fine. I need there to not be a space and according to the config I viewed from another company's router I should be able to do this. Do I need an different IOS version to let this happen?

ip dhcp pool DRC-DATA



domain-name morrishospital.org

netbios-node-type h-node



option 60 ascii "PXEClient"

lease 2

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
pstebner10 Thu, 01/22/2009 - 12:28
User Badges:

Option 66 requires a FQDN, which cannot contain blank spaces. You could alternatively use option 150 with the IP address of the tftp server, i.e.

option 150 ip www.xxx.yyy.zzz



zebranutz80 Thu, 01/22/2009 - 12:37
User Badges:

Hi Paul,

Thanks for replying. The configuration example i was give supposedly came directly from another Cisco Router that had Option 66 with a space. I will check back with the company and verify. Thanks.

pstebner10 Thu, 01/22/2009 - 12:47
User Badges:

No problem. By the way, you actually can use option 66 with an IP address instead of ascii. Option 150 is used by Cisco as you can specify multiple ip addresses if you have more than 1 tftp server.


This Discussion