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Bug #7329

open

DHCP Not Updating DNS

Added by Jon Noren about 5 years ago. Updated 4 months ago.

Status:
New
Priority:
Low
Assignee:
-
Category:
DNS Forwarder
Target version:
-
Start date:
02/28/2017
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.3.3
Affected Architecture:
amd64

Description

The DHCP server setting "Register DHCP leases in DNS forwarder" does register the host in the DNS server. However, if the server gets a new IP Address from the DHCP server the DHCP server does not update the DNS records correctly. It either adds the second IP address to the DNS record so now the same name returns two IP addresses or it doesn't update DNS records at all. The DHCP lease page shows the correct name to IP records but the DNS lookup returns the wrong values. I am not sure if this has anything to do with it, but the workstations in question are virtual machines that come out of a saved state.

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 #1

Updated by Kris Phillips 4 months ago

I've never run into this issue because the DHCP server in pfSense tries to hand the same IP to the host. Is your virtual host's MAC address changing when it comes out of it's saved state or roaming between hypervisors in a cluster? The only other time this should happen is if your IP space is suffering from near exhaustion and the address was recycled, but DNS should still get updated.

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 #2

Updated by Jon Noren 4 months ago

No, the MAC address is static. The IP Space in this case was approximately 50, and there were only 2-3 clients on the network. Honestly, this may be a solved issue by now. The system in question is no longer available for testing.

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