b10-dhcp6 doesn't not bind on Scope:Global inet6 address.

[Marcin Siodelski]

Angelo,

Thanks for your email.

Kea has support for binding socket to unicast address of your choice. It 
is documented in bind10-guide - section: 18.2.3. Unicast traffic support.

Also, the corresponding ticket about implementing this: 
bind10.isc.org/ticket/3195

Please, let me know if documentation is not sufficient or it doesn't 
work as expected and doesn't solve the problem in your network.

Marcin


On 14/03/14 12:30, Angelo Failla wrote:
> Hi,
>
> I'm writing to report a problem with bind10-dhcp6 component.
>
> It seems like b10-dhcp6 only binds to ff02::1:2 (the local dhcp 
> multicast address) and the Link IPv6 address but *NOT* the Global one.
>
> See output of `ifconfig eth0` on my machine:
>
> $ ifconfig  eth0
> eth0      Link encap:Ethernet  HWaddr 00:02:C9:DD:0D:5E
>           inet addr:10.35.139.79  Bcast:10.35.139.255  Mask:255.255.255.0
>           inet6 addr: fe80::202:c9ff:fedd:d5e/64 Scope:Link
>           inet6 addr: 2401:db00:3011:b:face:0:3b:0/64 Scope:Global
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:21598559 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:18807156 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:27172706152 (25.3 GiB)  TX bytes:18380499794 (17.1 GiB)
>
> Here you can see it's not binding on 2401:db00:3011:b:face:0:3b:0/64 
> (Scope:Global) as it should:
>
> $ sudo netstat -tunap | grep dhcp6
> udp        0      0 ff02::1:2:547               :::*                   
>            31292/b10-dhcp6
> udp        0      0 fe80::202:c9ff:fedd:d5e:547 :::*                   
>            31292/b10-dhcp6
>
> The rack switches in our network are configured to relay dhcpv6 
> traffic to the DHCP servers in our network via their global IPv6 
> addresses.
> Is this a known problem?
> PS: I'm running a version of bind10 pulled from your git repo HEAD on 
> the 11th of February 2014.
>
> -- 
> Angelo Failla
> Site Reliability Operations Dublin
> Pallotron at fb.com
>
>
> _______________________________________________
> bind10-dhcp mailing list
> bind10-dhcp at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind10-dhcp

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