[jesterpm]

RA (Router Advertisement) handles announcing the prefix for SLAAC addresses and DNS.

[magicalhippo]

But not other services like NTP, so DHCPv6 is still needed.

[zoredache]

Create a DNS name ntp.yourdomain.example.org that points at your internal ntp servers.

Configure your ntp clients to use the name, and maybe add a pool.ntp.org entry or two into your configs.

[magicalhippo]

> Configure your ntp clients to use the name

So how do you do this hands-off, ie without manually changing things on the clients, without DHCPv6?

[Arnavion]

For NTP, an alternative is letting the LAN devices connect to whatever NTP server they want to, and just NAT'ing outgoing udp/123 to your NTP server.

[magicalhippo]

Well yes, but that's a suboptimal hack.

[vetinari]

yes, but RDNSS is a relatively new option (only since 2007 ;) ), so some implementations ignore it.