Vendor Specific Information (DHCP Option 43)

perl-list perl-list at
Tue Jan 5 17:50:16 UTC 2021

Its pretty easy.

option space <some name>;
option <some name>.<some name 2> code <code #> = <data type>;
option <some name>.<some name 2> "http://IPADDRESS:port/";

Here is a practical example from a Calix ACS URL (distribution of tr69 URL via DHCP):

option space CALIXGS;
option CALIXGS.acs-url code 1 = text;
option CALIXGS.acs-url "";

----- Original Message -----
> From: "boomer_sooner_88" <jordanspcrepair at>
> To: "Users of ISC DHCP" <dhcp-users at>
> Sent: Tuesday, January 5, 2021 11:53:02 AM
> Subject: Vendor Specific Information (DHCP Option 43)

> I need to know if I can configure Vendor Specific Informatiton (DHCP Option
> 43) on ISC DHCP. Not sure exactly how to do this on ISC DHCP, but I can do
> this without problem on Windows DHCP Server.

> I need to convert "http://IPADDRESS:port/" to Binary for the Option 43
> Value.

> Thanks!

> --
> Sent from:
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