Date: Mon, 22 Nov 2010 19:04:56 +0800 From: Siquijor Philips <siquijorphilips@gmail.com> To: sthaug@nethelp.no Cc: freebsd-net@freebsd.org Subject: Re: How to generate IPv6 RA without any prefixes? Message-ID: <AANLkTimXsHgs6qo-ALwZWpNLvO0EgJ0Uq8pGJ22%2B%2BGx7@mail.gmail.com> In-Reply-To: <20101122.090147.74675296.sthaug@nethelp.no> References: <AANLkTimu5SiyQye1iPaGCuMOjb0im%2BTHUmy=ET_mCcw-@mail.gmail.com> <20101119.095212.74667071.sthaug@nethelp.no> <AANLkTimty_mO_kD1jxXo--vLbtzyZrVofy=yCPxuMXk3@mail.gmail.com> <20101122.090147.74675296.sthaug@nethelp.no>
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On Mon, Nov 22, 2010 at 4:01 PM, <sthaug@nethelp.no> wrote: >> > I would like to get rtadvd to send RAs completely *without* a prefix >> > info option. My Juniper routers at work can do this just fine... >> >> Oh I see. I haven't tried this case with FreeBSD configuring RA with >> default route info only. So, how your Juniper router coordinate your >> DHCPv6 server to inform the hosts or nodes where to get prefix info >> since then your router wasn't configured with pinfoflags options? > > The router sends RAs with the "managed" flag, in the RA header (not > connected to any specific prefix). This tells the clients that they > should attempt DHCPv6 configuration. > >> Or >> the hosts are just configured with DHCPv6 client informing directly >> the DHCPv6 server for IPv6 address info while its default route is >> obtainable via RA through SLAAC? > > The default route and the "managed" flag come from RA. The rest from > the DHCPv6 server. > > Some of us would *like* DHCPv6 to be able to work without RA - but that > is a different (religious) discussion. > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > Thanks for the explanation Steinar, this is clear to me now. So, as what other folks have suggested, I think you can proceed with issuing a PR to this.
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