Link to home
Create AccountLog in
Microsoft Legacy OS

Microsoft Legacy OS

--

Questions

--

Followers

Top Experts

Avatar of albevier
albevier

what is the difference between DHCP scope options 004 and 042?
This is one more of idle curiosity than anything. There are two options in a Windows Server DHCP scope -- 004 Time Server and 042 NTP Servers

What's the difference?

Zero AI Policy

We believe in human intelligence. Our moderation policy strictly prohibits the use of LLM content in our Q&A threads.

ASKER CERTIFIED SOLUTION
Avatar of TheCapedPlodderTheCapedPlodder🇬🇧

Link to home
membership
Log in or create a free account to see answer.
Signing up is free and takes 30 seconds. No credit card required.
Create Account
Avatar of albevieralbevier

ASKER

thanks! I was only vaguely aware of the fact that there was an older time protocol -- and I'd forgotten about that old protocol anyway.

Thanks
Avatar of youngrmyyoungrmy🇺🇸

If DHCP options 004 or 042 are configured, the DHCP server will respond with the IP address of the time server

Option 042, if configured, allows you to specify an array of IP addresses corresponding to servers that provide NTP/SNTP
Option 004, if configured, allows you to specify an array of IP addresses corresponding to servers that provide TIME/ITP
Avatar of albevieralbevier

ASKER

Thanks youngrmy,

I took a look at the RFCs that the capedplodder referenced. I had not know that the time/itp had been mostly abandoned.

Do you know if the manner that Windows 2003 uses to track time (i.e. through AD) is yet a different protocol? I noticed that in the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\Type value is set for NT5DS while instructions for making the server an NTP server ask that you change this value to NTP.

So is NT5DS a third protocol?

Al
Reward 1Reward 2Reward 3Reward 4Reward 5Reward 6

EARN REWARDS FOR ASKING, ANSWERING, AND MORE.

Earn free swag for participating on the platform.

Avatar of youngrmyyoungrmy🇺🇸

this article should answer all you may need to know the protocol that windows 2000 used was NTP server 2003 uses NT5DS

http://technet.microsoft.com/en-us/library/bb490845.aspx
Microsoft Legacy OS

Microsoft Legacy OS

--

Questions

--

Followers

Top Experts

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.