changing ports?

Discussion in 'other software & services' started by gerardwil, Dec 30, 2004.

Thread Status:
Not open for further replies.
  1. gerardwil

    gerardwil Registered Member

    Joined:
    Jan 17, 2004
    Posts:
    4,748
    Location:
    The Netherlands
    I am just wondering why the local ports changing every xx seconds when connected to a website. In the coppied example from 2007....2019 and connected to Wilders.

    04/12/30,19:59:28,TCP,2007,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:00:47,TCP,2008,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:01:12,TCP,2010,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:01:32,TCP,2011,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:01:47,TCP,2012,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:03:23,TCP,2014,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:04:10,TCP,2015,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:04:55,TCP,2016,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:05:38,TCP,2018,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >
    04/12/30,20:05:56,TCP,2019,192.168.xxx.,80,64.91.226.241,2636,firefox.exe,<GERARD\Gerard >


    TIA

    Gerard
     
  2. CrazyM

    CrazyM Firewall Expert

    Joined:
    Feb 9, 2002
    Posts:
    2,428
    Location:
    BC, Canada
    Hi gerardwil

    When initiating outbound requests for common remote services (ie. HTTP for web browsing), your system will use ports some refer to as "ephemeral ports" or the "temp range" for the local portion of these connections. The ephemeral ports or temp range is 1024-5000. These would be the standard ports used locally for most connections to remote services. As you browse with each new outbound request to a web server (remote port 80), the port used on your system would change, gradually working it's way up through the ephemeral ports.

    Regards,

    CrazyM
     
  3. gerardwil

    gerardwil Registered Member

    Joined:
    Jan 17, 2004
    Posts:
    4,748
    Location:
    The Netherlands
    Thanks very much for explaining CrazyM.
    Best regards,

    Gerard
     
Loading...
Thread Status:
Not open for further replies.