dhcp ipv6 unexpected subnetmask /128
mayer at iiasa.ac.at
Thu May 3 15:22:38 UTC 2012
Thanks to all of you for your reply.
From: dhcp-users-bounces+mayer=iiasa.ac.at at lists.isc.org [mailto:dhcp-users-bounces+mayer=iiasa.ac.at at lists.isc.org] On Behalf Of Alex Bligh
Sent: Wednesday, May 02, 2012 8:40 PM
To: Bjørn Mork
Cc: Users of ISC DHCP
Subject: Re: dhcp ipv6 unexpected subnetmask /128
--On 2 May 2012 19:53:20 +0200 Bjørn Mork <bjorn at mork.no> wrote:
>>> To put it another way: assigning adresses via DHCPv6 does not mean
>>> that you can avoid sending RAs from the router, to the best of my
>> Hmm - that provides an interesting challenge in VLANs with no router on.
> Why would you need any global addresses at all in such a network?
If you mean globally routable addresses, you don't. However, there is
no shortage of IPv6 addresses yet.
Imagine you have lots of VLANs acting as 'back end networks' (for
instance between web server and back end database), and wish the
NICs on that LAN to be configured (including receiving IPv6 addresses)
automatically, perhaps because you have some elastic service automatically
adding and deleting servers. How does DHCP work in that environment
if it provides the IP address but not the netmask?
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