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WHAT ARE THE PORT RANGES FOR ADDRESSES
Usable tcp and udp ports range from 1 to 65535. However you should not need to open any ports by default. Most routers include a stateful packet inspection (SPI) firewall. This is a fancy way of saying the router inspects the packet on it's way out to the internet when a computer on the inside of the firewall sends it out to the internet. The firewall will only allow connections from the internet on that TCP or UDP port if it returns from the original destination. For example, if you send a packet requesting the web page at cisco.com, the firewall will only allow traffic back into your network on TCP port 80 from the web server at cisco.com. If a packet from any other IP address tries to piggyback into your network through tcp port 80, the firewall will block it.
The only reason to open ports on your firewall is to allow a server inside your network to receive unsolicited traffic e.g. a web server inside your network may need TCP port 80 and 443 (HTTP and HTTPS) opened if you want to be able to access it from the internet. A mail server may need port 25 and 110 open for SMTP/POP e-mail. However, most home users do not host their own mail or web servers.
on Dec 27, 2014
I have forgotten my passwork to my wireless cisco
WEP key is defined by the person who set your wireless router up. You
will not be able to find out what the WEP key is, but you CAN change it
if you have physical access to the router. If you are trying to connect
to your wireless router and can't remember the WEP, then walk over to
the router and on the back or bottom of it is a small little hole that
you can fit a pen or paper clip into. Press the paper clip into the
little hole for 10 seconds and release. This will reset all the settings
on your router back to default and will allow you to access your
Note: doing this will take away all of your
wireless security so make sure that you know what you're doing before
messing with it!
Thanks and please rate if this helps you at all :).
on Jun 16, 2014
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