In article <050720031726338510%nospamiam.invalid>,
Mark Conrad <nospamiam.invalid> wrote:
.... looks okay to me
True, except the router also has an outside IP address (the one assigned> Once connection is established, then, and only then, two-way traffic
> can be transmitted between the two computers.
by your ISP). If someone on the Internet tries to connect to the
router's IP address that was assigned to it by your ISP (not the
192.168.1.1 address), and you've configured your router to forward
incoming traffic on that port to one of the private machines, then an
outside computer can make the initial connection.
A router basically connects two networks. You have a home network of
192.168.1.0, and then your ISP has its own network that has its own
routers that connect with other parts of the Internet, blah blah. Your
router has two IP addresses, one on each network.
The main reason that outside computers can't reach your inside computer
is because the computers on the other side are private addresses. You
really only have one internet address being shared between all of the
private computers. But that one internet address can be used for
incoming traffic if you open the appropriate ports. For example, I have
a web server running on my G3 behind a router, so port 80 is forwarded
to that machine. I have identd running on this iMac, so port 113 is
forwarded to it. And so on...
This is to the best of my knowledge, anyway! :-)
Doug Brown - La Grande, OR
Idiot's Guide to Mac Cases - [url]http://www.ircandy.com/maccases/[/url]
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