Date: Sun, 12 Apr 2009 14:07:34 -0700 From: Tim Kientzle <kientzle@freebsd.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: Robert Watson <rwatson@freebsd.org>, Julian Elischer <julian@elischer.org>, freebsd-arch@freebsd.org Subject: Re: getting a callback ip address for nfsv4 client Message-ID: <49E25816.9010907@freebsd.org> In-Reply-To: <Pine.GSO.4.63.0904121515220.27116@muncher.cs.uoguelph.ca> References: <Pine.GSO.4.63.0903301733120.17182@muncher.cs.uoguelph.ca> <alpine.BSF.2.00.0904051826550.12639@fledge.watson.org> <49D98461.4000002@elischer.org> <alpine.BSF.2.00.0904061143190.34905@fledge.watson.org> <Pine.GSO.4.63.0904061132190.19343@muncher.cs.uoguelph.ca> <BE45DEE0-8D98-4B32-B48A-4D86834DD6E2@rabson.org> <alpine.BSF.2.00.0904121323220.19879@fledge.watson.org> <C8A9F5A9-9B82-43A5-818A-3771B1B25CC7@rabson.org> <Pine.GSO.4.63.0904121357270.15456@muncher.cs.uoguelph.ca> <alpine.BSF.2.00.0904121906270.19879@fledge.watson.org> <Pine.GSO.4.63.0904121515220.27116@muncher.cs.uoguelph.ca>
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> The second brings up the question of NAT, which I know diddly about. > (I vaguely thought that neither rtalloc() nor getsockaddr() would work, > since they would return 192.168.x.x and you really need the address > assigned by the isp?) Can someone help w.r.t. what address to use > when behind a NAT? In general, the client doesn't know what address to use in this case. In fact, I've been a little confused by this conversation all along. It sounds like the client is looking up it's own address in order to tell the server how to contact the client? Why? The server already knows the source IP address on the incoming packets from the client; that's much more robust than anything the client could look up. Or did I misunderstand something? Tim
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