[Cialug] Cingular Sierra Wireless 2G/3G configuration with pppd

John.Lengeling at radisys.com John.Lengeling at radisys.com
Thu Apr 5 15:17:34 CDT 2007


I picked up a Cingular wireless data card for my sister who lives out in 
rural Iowa outside the range for Cable/DSL/PrairieInet.   I got the Sierra 
Wireless card configured in a laptop with Fedora 6 using pppd. 

Anyone else using these cards with Linux and pppd? 

I am seeing about 30-40K/sec thoughput which I think is pretty good. 
Latency kind of sucks around 300-400ms.
But all in all much better than 56k dialup (actually usually 24-36kbps 
connections).

The only thing not working is dial on demand.   I added the "idle" and 
"demand" commands to the pppd options file, but the link never seems to 
timeout.

johnl
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