Hello,
I'm at home without being in a Windows Domain. I just have a DHCP and DNS server which run on a now unsupported Windows Server version.
The DHCP server serves parameter option 015 with value "home.local".
Since the upgrade of my laptop with 24H2, all internal DNS queries fail now.
I have the feeling that is it related to IPv6.
My DNS and DHCP server has the IPv4 address 192.168.68.5
After a IPCONFIG /RENEW here are the settings installed:
(some useless lines removed)
Wireless LAN adapter Wi-Fi:
Connection-specific DNS Suffix . : home.local
Description . . . . . . . . . . . : Intel(R) Wi-Fi 6 AX201 160MHz
Physical Address. . . . . . . . . : D4-54-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2a02:a03f:6b56:f000:1b88:4717:c3fe:8ec9(Preferred)
Temporary IPv6 Address. . . . . . : 2a02:a03f:6b56:f000:54b6:66d1:abe8:ffa2(Preferred)
Link-local IPv6 Address . . . . . : fe80::91d8:f6b5:89d9:b168%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.68.85(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, 5 December 2024 10:18:29
Lease Expires . . . . . . . . . . : Friday, 6 December 2024 10:28:29
Default Gateway . . . . . . . . . : fe80::3a35:fbff:fe31:81ee%12
192.168.68.1
DHCP Server . . . . . . . . . . . : 192.168.68.5
DHCPv6 IAID . . . . . . . . . . . : 164910219
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-29-50-9F-B5-7C-8A-E1-BE-3C-D8
DNS Servers . . . . . . . . . . . : fe80::3a35:fbff:fe31:81ee%12
192.168.68.5
192.168.68.1
fdaa:fbbc:bfdd:eef0:ff:f1d0::
NetBIOS over Tcpip. . . . . . . . : Enabled
Connection-specific DNS Suffix Search List :
home
When I type:
nslookup
Default Server: UnKnown
Address: fe80::3a35:fbff:fe31:81ee
it shows me that I am querying some local IPv6 DNS server, instead of the one supplied in option #6 of the DHCP setting.
My server is named "s" (with FQDN "s.home.local")
... continuing the nslookup queries ...
C:\Users\fred>nslookup
Default Server: UnKnown
Address: fe80::3a35:fbff:fe31:81ee
> s
Server: UnKnown
Address: fe80::3a35:fbff:fe31:81ee
*** UnKnown can't find s: Non-existent domain
> s.local
Server: UnKnown
Address: fe80::3a35:fbff:fe31:81ee
*** UnKnown can't find s.local: Non-existent domain
> s.home.local
Server: UnKnown
Address: fe80::3a35:fbff:fe31:81ee
*** UnKnown can't find s.home.local: Non-existent domain
> lserver 192.168.68.5
Default Server: [192.168.68.5]
Address: 192.168.68.5
> s
Server: [192.168.68.5]
Address: 192.168.68.5
Name: s.home.local
Address: 192.168.68.5
> s.local
Server: [192.168.68.5]
Address: 192.168.68.5
*** [192.168.68.5] can't find s.local: Non-existent domain
> s.home.local
Server: [192.168.68.5]
Address: 192.168.68.5
Name: s.home.local
Address: 192.168.68.5
How can I avoid this interference with IPv6, that overrides the answers of my DHCP server ?
This behaviour is new since the installation of 24H2.
Thanks,
Frédéric, from Belgium