OPNsense Forum

English Forums => 24.7, 24.10 Series => Topic started by: FlangeMonkey on December 10, 2024, 01:53:55 AM

Title: DHCPv6 Renewal always gives new IPv6 address
Post by: FlangeMonkey on December 10, 2024, 01:53:55 AM
I have an odd issues, where when a device restarts DHCPv6 is always giving the client a new IPv6 address.

Within the leave on "ICP DHCPv6" I see the following (attached)

(https://forum.opnsense.org/index.php?action=dlattach;topic=44549.0;attach=40385)

Any idea's the leave times are default?
Title: Re: DHCPv6 Renewal always gives new IPv6 address
Post by: Melroy vd Berg on December 10, 2024, 11:57:23 PM
I'm just guessing, but did you provide the dhcp identifier has "mac address" in your client device?

Not sure what you're using. Under Ubuntu for example you have a tool called netplan (not a fan of it.. but it is what it is). And via netplan I can configure under the correct interface:

dhcp-identifier: mac

So in that case I would expect the DHCPv6 server to identify that it is indeed the same server, since the mac address didn't change?