How to check my IP???

[Tony Alfrey]

Kurt Wall wrote:
> 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?

Yes, thanks!.  The reason I ask all of this is that our tenant, with a 
windoze box, is having a hard time apparently getting an IP address from 
our network behind the NAT firewall.  Something about her config; other 
visitors don't have this problem.  So I'm trying to understand the 
process.  Someone told her to configure the box statically, and I'm 
telling her I can't do this because Comcast does not give us an IP 
address statically (and the Apple GUI says that, too).




-- 
Tony Alfrey
tonyalfrey at earthlink.net
"I'd Rather Be Sailing"