[ntp:questions] Re: refid on client differs from refid on local server

Hal Murray hmurray at suespammers.org
Fri Dec 16 19:06:56 UTC 2005

>> As to the how, is there perhaps an usused bit which could be set to say 
>> "Valid 32-bit IP address"?

>No, the refid based on IPv6 addresses is an mangled MD5 hash and uses
>all 32 bits. I wouldn't want to do it anyway since a refid could be
>absolutely anything.

It seems quite handy for debugging/poking-around to have the old
IPv4 addresses printed out as host names.

I assume that was done at the ntpq end.  Perhaps the string
sent from ntpd could be stretched to include a tag character
that would help that decoding.  4 for IPv4, T for text, ...

The suespammers.org mail server is located in California.  So are all my
other mailboxes.  Please do not send unsolicited bulk e-mail or unsolicited
commercial e-mail to my suespammers.org address or any of my other addresses.
These are my opinions, not necessarily my employer's.  I hate spam.

More information about the questions mailing list