Description of problem:
Dhcp-client(isc-dhclient-4.4.2b1) packaged with RHEL 9.2 is not compatible with windows server 2019 acting as a dhcpv6 server.dhcp-client is unable to process DHCPv6 advertise packet coming from Dhcpv6 server. dhcp-client works fine with the dhcpv6 server running in any linux VM(VYOS,ubuntu).

Version-Release number of selected component (if applicable):

dhcp-client : isc-dhclient-4.4.2b1

How reproducible: Always reproducible

Steps to Reproduce:
1.Install dhcp-client package in RHEL 9.2
2.run dhclient6 with command "dhclient -6 -v <intf_name>".interface from client server are back to back connected.start the dhcpv6 server on windows server VM (2019).
3.Capture ipv6 packets either in client or in server .

Actual results: from the packet captures and verbose logs from client, we are observing that server is sending dhcpv6 advertise packet but somehow client is not able to process it and send dhcpv6 request packet .

Expected results:

Verbose logs from dhclient should show the processing of dhcpv6 advertise packet from dhcpv6 server and client should send dhcpv6 request packet to server.

Additional info:Issue is there in centos8/rockylinux 9/RHEL 8/RHEL 9.2 linux versions. dhclient packaged in ubuntu linux distribution is working as expected.There might be a good chance that ubuntu/debian community has applied patches on top of isc-dhcp-client package.