[Dnsmasq-discuss] Client Not Getting IPv6 Address

Simon Kelley simon at thekelleys.org.uk
Wed May 29 16:26:26 BST 2013


On 29/05/13 16:01, John Thomas wrote:
> It is probably a broken client, but not sure.  Most clients are getting
> ipv6 addresses (windows, linux, ipad, etc).  Android is not and neither is
> the HP Printer.  The HP printer DHCPSOLICIT string looks long, by the way.
>   IPv6 on the printer control panel shows:
> Status: Ready Link-Local Address: FE80::F6CE:46FF:FE33:FEDDStateless (from
> Router):Not Configured Stateful (from DHCPv6):Not Configured
>
> [root at router etc]# rpm -qa | grep dnsmas
> dnsmasq-2.65-5.fc18.x86_64
>
> Here is the printer failing:
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 available DHCP range:
> 2001:470:redacted:2::200 -- 2001:470:redacted:2::300
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 DHCPSOLICIT(eth1)
> 00:03:00:01:f4:ce:46:33:fe:dd
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 requested options:
> 13:status, 12:unicast, 23:dns-server, 24:domain-search,
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 requested options:
> 7:preference
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 tags: known, dhcpv6,
> eth1
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 sent size: 10 option:
>   1 client-id  00:03:00:01:f4:ce:46:33:fe:dd
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 sent size: 14 option:
>   2 server-id  redacted
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 sent size: 40 option:
>   3 ia-na  IAID=1 T1=0 T2=0
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 nest size: 24 option:
> 13 status  2 No addresses available
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 sent size: 16 option:
> 23 dns-server  2001:470:f1b7:2::1
> May 29 07:42:16 router dnsmasq-dhcp[7031]: 16479736 sent size: 10 option:
> 39 FQDN  hpprinter
>
>


Android support for stateful DHCPv6 is missing/broken before 4.3, 
according to

http://en.wikipedia.org/wiki/Comparison_of_IPv6_support_in_operating_systems

As for the printer, it's setting a "known" tag, which implies a 
dhcp-host line, and then sending "No addresses available" which implies 
possibly no suitable address.

Would it be possible to send me your dnsmasq config, off-list if you prefer?

Is there any chance you could try dnsmasq-2.66, which has many DHCPv6 fixes?

Cheers,

Simon.






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