[c-nsp] RS232 to TCP/IP

Antonio Querubin tony at lava.net
Fri Oct 31 00:40:12 EDT 2008


On Thu, 30 Oct 2008, Sridhar Ayengar wrote:

> Antonio Querubin wrote:

>> Can't you just run PPP (without a modem) over the serial link?
>
> That requires a non-trivial amount of compute power free on the PC.

Perhaps if you were using a software-driven modem or running an extremely 
high-speed serial (ie. T1) but he's using RS-232 and he's not using a 
modem.  Even an old 386 can run a decent PPP link with VJ header 
compression on a 115kbaud serial link as long as it's got a decent UART. 
A lot of folks have done low-speed routing with Linux boxes that way years 
ago.

Antonio Querubin
whois:  AQ7-ARIN


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