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Posted by / 10-Aug-2017 07:43

To check, right-click your DHCP scope and go to properties.On the DNS tab enable DNS dynamic updates and set to "Always dynamically update..." Also enable Dynamic Update for clients that do not request updates.Before checking anything else, check the event log for errors.For more information about Event Viewer, see "Troubleshooting Tools" earlier in this chapter.

I have been looking at the Cisco docs for getting this to work but nothing yet.

The problem is this: when the network adapter is configured for DHCP and the DHCP server doesn't register DNS records on behalf of its clients (because it can't, or because it's not configured to do so), then A friend not on SF said: "That's normal, PTR is only updated by DHCP in Win2K ".

That doesn't exactly seem to be the case from your experience, but might be close.... Massimo, are you able to pull a wireshark trace and check the DHCPREQUEST Packet?

There should be a flag set to "1" if the client is supposed to update both the A record and PTR record.

A flag of "0" means the client updates the A record and requests that the server update the PTR record on its behalf. Also in the DHCP scope make sure == Click the DNS tab, click Properties, and then click to select the Dynamically update DNS A and PTR records only if requested by the DHCP clients check box == is set.

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Would like to see about getting DHCP configured on a Cisco switch to auto-register the computers hostname with a MS DNS server.