Linux port usage interpertation?

[Chinook <chinook.nr@tds.net>]

Linux port usage interpertation?
--------------------------------

In trying to further improve my Linux (AppleTalk server) Mac (client) 
LAN I've been (in part) looking at the Mac OS X firewall log.  For Mac 
to Mac traffic I use the support document 
http://docs.info.apple.com/article.html?artnum=106439 as a guide.  I 
would think that such might generally apply to Linux also, but I can't 
seem to find a similar guide for Linux.  

More specifically, I don't understand the following Linux related 
"denied" entries in the OS X firewall log.

legend: <prefix> = "ipfw 12190"
       <from> = url of Linux box on LAN as 192.168.x.xx
       <to> = url of Mac on LAN as 192.168.x.xx
       <suffix> = "via en0" (Belkin router - ethernet 0)
       
<prefix> <from>:49658 <to>:79     <suffix>
                         :58724         :80
                         :58725         :80
                         :58726         :80
                         :58727         :80
                         :43600         :49932
                         :52405         :49933
                         :35367         :49936
                         :33708         :49937
                         :47891         :50802
                         :41822         :50803
                         :1057           :5000
                         :1058           :5000
                         :1059           :5000
                         :1065           :5000
              
              
Any pointers would be appreciated :-)

Thank you
Lee C