Date: Thu, 15 Jul 2004 16:07:10 -0400 From: Barney Wolff <barney@databus.com> To: Gleb Smirnoff <glebius@freebsd.org>, Gary Corcoran <garycor@comcast.net>, freebsd-net@freebsd.org Subject: Re: DHCP server over PPPoE server Message-ID: <20040715200710.GA90594@pit.databus.com> In-Reply-To: <20040715192837.GB21326@cell.sick.ru> References: <40F5C880.3090206@comcast.net> <20040715085219.GA17358@cell.sick.ru> <40F6A878.9090407@comcast.net> <20040715192837.GB21326@cell.sick.ru>
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On Thu, Jul 15, 2004 at 11:28:37PM +0400, Gleb Smirnoff wrote: > On Thu, Jul 15, 2004 at 11:53:28AM -0400, Gary Corcoran wrote: > G> My research indicates that rather than doing the usual DHCP DISCOVER to > G> start things off, I should be able to send a DHCP INFORM message, > G> which includes my already-assigned IP address. The DHCP server should > G> see this, it then MUST NOT (according to the RFC) lookup the address > G> in its lease database, but it then should respond, sending the all the > G> configuration parameters *except* an IP address, back to the IP address > G> that was included in the message. > G> > G> Thus my desire to get dhcpd running with mpd pppoe... > G> Any suggestions? > > Well if you even make your DHCP server send packets to already > configured IP address, I'm afraid the client side will just ignore them. DHCP is not restricted to broadcast networks. In fact, the ietf-ppp(ext) working group is quite adamant that DHCP be used to get configuration data rather than adding new attributes to LCP/IPCP. -- Barney Wolff http://www.databus.com/bwresume.pdf I'm available by contract or FT, in the NYC metro area or via the 'Net.
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