Does the dhcpv6 server provide the subnet information to the client like dhcpv4?
sthaug at nethelp.no
sthaug at nethelp.no
Tue May 31 08:13:12 UTC 2011
> In ipv4 configuration, we can specify the netmask key word like below,
>
> subnet 192.168.9.0 netmask 255.255.255.128 {
>
> }
>
> and the client can acquire the subnet information from the dhcpv4 server.
>
> in ipv6 configuration, we can also specify the subnet network:
>
> subnet6 2001:0:0:9::/64 {
>
> }
>
> but the client can not acquire the subnet information from the dhcpv6
> server, is that expected?
It depends on what you mean by "subnet information". The client is not
expected to get netmask or default gateway from DHCPv6 - this should
come from a router advertisement (RA).
[And if you're wondering: It's possible to send RAs without prefix
information, *or* to send prefix information but specify that this
prefix cannot be used for autoconfiguration.]
Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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