On 13-Aug-2007, "TheScullster" <(E-Mail Removed)> wrote:
> Daft question - all routers of a particular brand have the same setup
> instructions and the same ip address.
> Doesn't selling thousands of these things with the same address etc make
> life easy for hackers?
No, there are 3 IP address ranges for private use, that should not
broadcast to the Internet.
10.0.0.0 to 10.255.255.255
192.168.0.0. to 192.168.255.255
172.16.0.0 to 172.31.255.255
Most routers use the 192.168 set, and themselves
192.168.1.0 or similar, though this can usually
be changed in the control panel.
Each user connected to the internet gets an IP
address from the ISP's pool, this can be
fixed static, or dynamic and subject to change.
Subnet masks are used in the mapping process,
between the private range, and the remainder, public
range of IP addresses.
Properly set up the routers firewall should make your
local network invisible to hackers, by not responding
to echo requests (pings) or port probes.
Go to
http://www.grc.com/default.htm
Scroll down to Shields Up and click on the red title.
Now test your own setup.
Make the necessary changes until tests show
Congratulations you are completely invisible,
it's as if if your PC doesn't exist.