[ct-user] Upgrade computer strategy

Ed Parish K1EP k1ep at arrl.net
Wed Aug 6 08:59:53 EDT 2003

At 05:59 AM 8/6/03 -0500, k1ttt at arrl.net wrote:
>> At 08:08 PM 8/5/2003 -0400, Ed Parish K1EP wrote:
>> You CANNOT mix the loop option with Ethernet.  The loop option essentially 
>> breaks the serial port into two single direction ports.  The data comes in 
>> on the Rx line from one station and out on the Tx line to the next 
>> station.  This will not work on Ethernet, it will loop back on itself and 
>> melt down your computer.
>sorry, that is just an urban legend.  there is code in the nettsr to prevent 
>this kind of loop... (really, there is!)
>i am not sure how ct would handle this though, it might get confused trying to 
>set up the nettsr as a loop interface.

Okay, that is great.  Back about three years ago before I went to J3A, I talked with K1EA about doing this, as I was trying to set up our network and had some laptops with only one serial port, mixed with some desktops with no ethernet port.  At that time, the conclusion was not to do it.  Glad to hear it is an urban legend.

More information about the CT-User mailing list