[windows2000] Re: OT: Checking NAT device
- From: "Sullivan, Glenn" <GSullivan@xxxxxxxxxxxxxx>
- To: <windows2000@xxxxxxxxxxxxx>
- Date: Thu, 20 May 2004 08:18:57 -0400
How about a simple packet sniffer on a hub between the external interface and
the rest of the world?
Take a hub, plug one port into your "WAN" connection and plug another into the
"WAN" NIC on your server.
Plug in a laptop, and load up ethereal. Start capturing packets, and then sort
by mac address.
Glenn Sullivan, MCSE+I MCDBA
David Clark Company Inc.
-----Original Message-----
From: windows2000-bounce@xxxxxxxxxxxxx
[mailto:windows2000-bounce@xxxxxxxxxxxxx]On Behalf Of Eduard L. Frerking
Posted At: Thursday, May 20, 2004 8:07 AM
Posted To: Windows 2000
Conversation: [windows2000] OT: Checking NAT device
Subject: [windows2000] OT: Checking NAT device
Sorry for the slightly OT.....
Is there anyway to test which MAC addresses are being seen outside a NAT device
such as a dual honed Win2K server?
We have a Win2K box acting as a Router/Bridge and DHCP server. One NIC is
connected to the Internet (WAN side) and the other to our network (LAN side).
It works well. However, is the anyway to test easily that our LAN side host
(computers, servers, etc.) MAC addresses are not seen on the WAN side?
In other words, We want to test the NAT function that the translation does not
reveal the number or type of LAN side host we have to the Internet WAN.
This question could be asked of any router that provides NAT.
Eduard L. Frerking
Capt. Jason M. Dahl School
San Jose, CA
elf@xxxxxx
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