There is a test for dnsmasq which fails at rhel10 about ipv6. Rhel9 works as expected.
Dnsmasq does not offer ipv6 address.
Dhcpd timed out.

Please provide the package NVR for which the bug is seen:

dnsmasq-2.90-4.el10.x86_64

How reproducible is this bug?:

always

Steps to reproduce

schedule test https://gitlab.com/redhat/rhel/tests/dnsmasq/-/tree/master/Regression/DHCPv6-relay-by-dnsmasq?ref_type=heads

testing-farm request --git-url https://src.fedoraproject.org/tests/dnsmasq.git --git-ref main --test-type fmf --context 'distro=rhel-10'  --compose RHEL-10-Nightly --test-filter tag:review

Expected results

dhcpcd got ipv6 address

Actual results

no ipv6 by dhcpcd

------

rhel9 , there is tcmpdump log for rhel9:

DHCPv6 168 Relay-forw

ICMPv6 86 Neighbor Solicitation

DHCPv6 206 Relay-reply L: 2000::a Advertise

DHCPv6 214 Relay-forw

DHCPv6 201 Relay-reply

dnsmasq in rhel10 : its missing ^

rhel10 results:

artifacts https://artifacts.osci.redhat.com/testing-farm/825edcb3-5ccc-404a-915b-c098cdc0393e

rhel9
test passed, results [+https://artifacts.osci.redhat.com/testing-farm/51bf9b8e-eafa-486a-85a7-dad39da964ad+]
 
tcpdump captured:
there are dhcpv6 advertise/relay/replay/request (missing in rhel10)
 
:: [ 10:21:27 ] :: [ BEGIN ] :: Running 'tshark -r server.pcap'
Running as user "root" and group "root". This could be dangerous.
1 0.000000 :: → ff02::1:ff2a:674d ICMPv6 86 Neighbor Solicitation for fe80::4ff:12ff:fe2a:674d
2 0.071992 :: → ff02::1:ff00:a ICMPv6 86 Neighbor Solicitation for 2001::a
3 0.080006 :: → ff02::1:ff5f:5d52 ICMPv6 86 Neighbor Solicitation for fe80::b49a:ffff:fe5f:5d52
4 0.271998 :: → ff02::1:ff00:b ICMPv6 86 Neighbor Solicitation for 2001::b
5 0.272034 :: → ff02::1:ff08:354e ICMPv6 86 Neighbor Solicitation for fe80::500d:25ff:fe08:354e
6 0.400039 fe80::18ff:abff:fea1:9318 → ff02::2 ICMPv6 70 Router Solicitation from 06:ff:12:2a:67:4d
7 0.464006 :: → ff02::1:ff00:1 ICMPv6 86 Neighbor Solicitation for 2001::1
8 0.464035 :: → ff02::1:ff22:ffd9 ICMPv6 86 Neighbor Solicitation for fe80::7430:34ff:fe22:ffd9
9 1.040002 fe80::4ff:12ff:fe2a:674d → ff02::2 ICMPv6 70 Router Solicitation from 06:ff:12:2a:67:4d
10 1.104233 fe80::b49a:ffff:fe5f:5d52 → ff02::2 ICMPv6 70 Router Solicitation from b6:9a:ff:5f:5d:52
11 3.369579 2000::a → ff05::1:3 DHCPv6 168 Relay-forw L: 2000::a Solicit XID: 0x22a8ec CID: 0004ec2fc1a7a32742b896e6839e916b866b
12 3.369756 2001::1 → ff02::1:ff08:354e ICMPv6 86 Neighbor Solicitation for fe80::500d:25ff:fe08:354e from b6:9a:ff:5f:5d:52
13 3.369773 fe80::500d:25ff:fe08:354e → 2001::1 ICMPv6 86 Neighbor Advertisement fe80::500d:25ff:fe08:354e (rtr, sol, ovr) is at 52:0d:25:08:35:4e
14 3.369779 2001::1 → 2000::a DHCPv6 206 Relay-reply L: 2000::a Advertise XID: 0x22a8ec CID: 0004ec2fc1a7a32742b896e6839e916b866b IAA: 2000::adc7
15 4.175994 fe80::18ff:abff:fea1:9318 → ff02::2 ICMPv6 70 Router Solicitation from 06:ff:12:2a:67:4d
16 4.450635 2000::a → ff05::1:3 DHCPv6 214 Relay-forw L: 2000::a Request XID: 0x30af83 CID: 0004ec2fc1a7a32742b896e6839e916b866b IAA: 2000::adc7
17 4.450955 2001::1 → 2000::a DHCPv6 201 Relay-reply L: 2000::a Reply XID: 0x30af83 CID: 0004ec2fc1a7a32742b896e6839e916b866b IAA: 2000::adc7
18 4.687979 fe80::4ff:12ff:fe2a:674d → ff02::2 ICMPv6 70 Router Solicitation from 06:ff:12:2a:67:4d
19 4.816280 fe80::b49a:ffff:fe5f:5d52 → ff02::2 ICMPv6 70 Router Solicitation from b6:9a:ff:5f:5d:52