How to check my IP???

Kurt Wall kwallinator
Sat Dec 10 10:32:32 PST 2005


On Saturday 10 December 2005 09:48 am, Tony Alfrey wrote:

[wut's my IP?]

> I have a question about this; I am network stupid so consider that when
> replying.
> We're on a Comcast cable modem.
> I connect the the cable modem with an Apple Airport Extreme wireless
> router/firewall gizmo.  The configuration utility for the Airport
> Extreme says that I am assigned an IP address via DHCP and NAT and the
> address that I see at my end always looks something like 10.0.1.5 or
> 10.0.1.11 which is, of course, because we're behind the firewall
> represented by the Apple box.

Right.

> The number I get when I use your website is something like 24.6.156.161.
>   Maybe it changes as time goes by because Comcast says that they assign
> one address dynamically to each user (I haven't checked to see if this
> is true, yet).  So I assume that this number that I see is somehow the
> IP address of the "cable" or wireless router attached to the cable?

The 24.mumble is the one assigned by Comcast and the one the Internet 
"sees". the 10.mumble address is the one assigned by the router. It is 
strictly an internal address. The router takes care of NATting for you, which
is what ensures that packets sent from the 10.mumble IP get to the 24.mumble 
IP and vice versa.

Clear?

Kurt
-- 
Only presidents, editors, and people with tapeworms have the right to
use the editorial "we."


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