Hi,

I'm banging my head with a KVM VM only ipv6 who can't get stateless dhcpv6 address. Always getting messages like shown below:

Configuration being

enable-ra
ra-param=lan,high,60,60
dhcp-range=set:computer6,::0,::ffff,constructor:lan,ra-stateless,ra-names,1h
dhcp-option=tag:computer6,option6:3,fd99:1234:beef:cafe::2
dhcp-option=tag:computer6,option6:6,fd99:1234:beef:cafe::1
dhcp-option=tag:computer6,option6:ntp-server,fd99:1234:beef:cafe::2

Starting dnsmasq I get in logs

Feb 25 16:52:38 dnsmasq[211076]: demarré, version 2.85 (taille de cache 2048)
[...]
Feb 25 16:52:38 dnsmasq-dhcp[211076]: DHCPv6 sans état (stateless) sur lan
Feb 25 16:52:38 dnsmasq-dhcp[211076]: noms IPv6 dérivés de DHCPv4 sur lan
Feb 25 16:52:38 dnsmasq-dhcp[211076]: annonces de routeurs sur lan

Feb 25 16:52:38 dnsmasq-dhcp[211076]: annonces de routeur IPv6 activées

[...]
Feb 25 16:53:09 dnsmasq-dhcp[211076]: pas de plage d'adresse disponible pour la requête DHCPv6 via lan

or configuration being

enable-ra
ra-param=lan,high,60,60
dhcp-range=set:computer6,fd99:1234:beef:cafe::0,fd99:1234:beef:cafe::ffff,slaac,ra-names,1h
dhcp-option=tag:computer6,option6:3,fd99:1234:beef:cafe::2
dhcp-option=tag:computer6,option6:6,fd99:1234:beef:cafe::1
dhcp-option=tag:computer6,option6:ntp-server,fd99:1234:beef:cafe::2

Feb 25 17:10:32 dnsmasq[214786]: demarré, version 2.85 (taille de cache 2048)
[...]
Feb 25 17:10:32 dnsmasq-dhcp[214786]: DHCPv6, plage d'adresses IP fd99:1234:beef:cafe:: -- fd99:1234:beef:cafe::ffff, durée de bail 1h Feb 25 17:10:32 dnsmasq-dhcp[214786]: noms IPv6 dérivés de DHCPv4 sur fd99:1234:beef:cafe:: Feb 25 17:10:32 dnsmasq-dhcp[214786]: annonces de routeurs sur fd99:1234:beef:cafe::
Feb 25 17:10:32 dnsmasq-dhcp[214786]: annonces de routeur IPv6 activées
[...]
Feb 25 17:11:37 dnsmasq-dhcp[214786]: DHCPSOLICIT(lan) 00:01:00:01:27:b4:3b:4d:52:54:00:e5:33:8a Feb 25 17:11:37 dnsmasq-dhcp[214786]: DHCPREPLY(lan) 00:01:00:01:27:b4:3b:4d:52:54:00:e5:33:8a pas d'adresse disponible

Interface lan is a bridge of eth0 if it matter.

Any clue on whats going on here ? Thanks for your support.
--
Daniel

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