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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: DirecPC Protocols
On Thu, Nov 14, 2002 at 02:53:59PM -0800, Crist J. Clark wrote: > > I've been looking for some technical descriptions on how DirecPC works > from a TCP/IP point of view. Does anyone out there have some > references? I have not been able to find anything too detailed, and > from what I have been told, they are not too forthcoming when > contacted directly. > > I know the rough outline. The customer sends out traffic over a normal > PPP link (since the customer has no uplink to the DirecPC satellite) > to a separate ISP. The traffic has a spoofed source address set to > some DirecPC server at their ground site(s). Thus, the third-party > target's response goes to DirecPC who send it over their satellite > link back to the customer using the wide satellite pipe instead of the > narrow PPP pipe. I'm not sure how many users are on the legacy system still, but the latest DirecPC service "DIRECWAY" is actually two-way satellite connectivity without the need for a dial uplink. -c
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