From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christopher Nielsen To: 9fans@cse.psu.edu Subject: Re: [9fans] IL and NAT In-Reply-To: <20001118001754.DE2F0199E1@mail.cse.psu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Date: Fri, 17 Nov 2000 16:50:25 -0800 Topicbox-Message-UUID: 2c543dde-eac9-11e9-9e20-41e7f4b1d025 On Fri, 17 Nov 2000 geoff@x.bell-labs.com wrote: > NAT routers generally have to rewrite port numbers (not > just IP addresses) for protocols that use them, and > ports numbers are at different offsets and of > potentially different sizes in different protocol's > headers. IL's port numbers appear later than TCP's and > UDP's, for example. NAT routers will generally > understand the headers of TCP, UDP and ICMP at minimum, > but I haven't encountered one yet that understood IL > (even Lucent's own). That makes perfect sense, and if I would have been a little more patient and thought it through, I probably would have figured that out. That said, I have some sway with Cisco's development team, so I _might_ be able to get them to implement support for IL. I'll let you know how it goes. -- Christopher Nielsen cnielsen@pobox.com