Re: ipconfig question
From: Dan (dan.d'amelio_at_fmr.com)
Date: 04/28/04
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Date: 28 Apr 2004 07:52:16 -0700
Is there a way to verify what the IP/subnet mask of the router,
firewall, or proxy server might be from a regular user on the subnet?
Some type of DOS or Unix command?
"Adam" <avogini_delete@yahoo.com> wrote in message news:<4fe201c42c98$faafe8a0$a601280a@phx.gbl>...
> Well, technically your half right. You ARE on a Class A
> network...sorta. If you are on an internal network, the
> network admin more than likely has a NAT system set up.
> With that, the netadmin can have set up the internal IP's
> separate from the outside world. Standard internal IP
> addressing is either 10.x.x.x, 172.16.x.x, or 192.168.x.x.
> Then, the netadmin uses whatever subnet needed...in this
> case, you more than likely have a single subnet, aka ur
> entire network on the same network.
>
> Now, NAT comes in when you want to reach out to the
> Internet. The NAT server, which is either an actual
> server, your firewall, or a gateway router, takes your IP
> of say 10.65.26.132 and translates that into an EXTERNAL
> IP address...which may be 65.68.7.16. The reason to do
> this is two-fold: one is so that way, you can use a
> limited number of IP address for a much large group of
> users; hense you may have 25 people on your internal
> network, yet only two external IP address. The other
> benefit is security, and a hacker won't be able to
> identify which workstation or what IP setup is in use, due
> to the external IP address.
>
> Sorry its a lil lengthy, but thats the jist of it.
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