What is a GATEMAC Network? - Hawkeye

New DELL Desktop delivered 12/24.  In reviewing NortonIS2008 logs for
1/2, I found the entry "connected to trusted network (GATEMAC) 0A 00
3E 23 63 46" with a threat rating of Low.  This network utilized many
ports from 49945 to 50085.  I checked IPCONFIG and I list three
9 .

Is this a "normal" part of Vista's status reporting architecture, or
is this some kind of port-stealing malware?  Scans with Norton and
Defender show nothing.   I have looked everywhere that I as a novice
user can think of, with no results, and would sure appreciate any help
from the Group.

Thanks, Hawkeye