Hallo!

Currently I am using 3Com router. I plan to block Internet access for
the LAN users through the router. Initially, I plan to block port 80.
Users can still check email through MS Outlook/Outlook Express.

Any other suggestion that I need to take into consideration so that
Internet access is totally blocked.

Danke!

"hunkgym" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hallo!
>
> Currently I am using 3Com router. I plan to block Internet access for
> the LAN users through the router. Initially, I plan to block port 80.
> Users can still check email through MS Outlook/Outlook Express.
>
> Any other suggestion that I need to take into consideration so that
> Internet access is totally blocked.
>
> Danke!


Block port 8080 as well, which is a well known proxy port. There are many
open proxies out there that use 8080 and if any of your employees knew of
any, they could put the address followed by port number into their browser
(ie: http://www.someplace.com:8080) and bypass your port 80 block. You may
want to consider blocking other ports like FTP and NNTP, if that's an issue.

HTH,
Jim