Windows XP - Former classID sent
nicolas at ecarnot.net
Tue May 3 10:38:42 UTC 2011
This is not a question, but a report.
By a VB script copied locally then ran, I'm modifying a thousand of
windows XP hosts from a static setup to a dhcp one with classIDs.
Some hosts were already using dhcp and an old classID, but changed to a
Along the use of this script, I realize that on some seldom hosts,
changing their classID did worked (ipconfig /all does show the correct
new classID), but a tcpdump on the DHCP server show that what is
received is the *former* classID!
Launching a cmd then ipconfig /release then renew does not improve this
Rebooting the windows hosts does not improve this behaviour!!!
Checking the windows host registry shows the correct new classID.
The only way to cope with it is to re-run ipconfig /setclassid blahblah
via the cmd.exe's host itself, then use windows'GUI explorer.exe and the
"Repair interface" right click way.
Would I have observed that once, I would have taken a rest, two coffees
and blame myself.
Las, I observed that 4 or 5 times, witnessed by an expert co-worker.
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