Individually identifying DHCP clients...

[steveandon]

Here's another question for all: Do you know if there is any way to make a router send the DHCP client PC's MAC address (or internal IP address over the web), so that an authentication table can be kept on a web server outside the internal network?

for example, if my router has one static IP and there are 10 users behind it being given DHCP addresses from a pool, from the outside they all look like one user (all web requests come from the same IP). so, if I am running a web site on the other end and all 10 of those users come to my site, it looks like one user.

is there any way to make it so i can tell one internal client from another from the internet (as opposed to only the intranet)?

 

[Wishdiak]

steveandon,

In this case, the only thing that occurs to me is to log packets on the NAT router. Then you could filter that log and see what hosts are sending traffic...I know that the client computer send traffic on a well-known port, but I'd have to look up the port number.

Wishdiak

http://www.wishdiak.com