On Sep 9, 8:31*pm, sb5...@yahoo.com wrote:
> In my company, all PCs are connected to a 24-port Dlink switch. A
> broadband router is connected to this switch as well (where all
> internet traffic goes).
>
> I want to find out how many PCs are connected at a particular point in
> time (not necessary browsing the net).
>
> I can't see all connections by using the Windows Explorer (I am
> running XP on my PC).
>
> Typing 192.168.1.1 shows nothing.
>
> Thanks.

1) What is your definition of "connected at a particular point in
time"? Does it just mean their port is live at the switch?

2) What model is the switch? Is it a managed switch?

DS

By "connected" I mean PC is on, ie if someonw were to look at the
front panel of the switch the LED is lighted; thus PC is on and the
switch is "aware" of its presence. But I am at another floor, I want
to find out from my location.

The Switch is D-link Des1024R+; I am not sure it is managed ( I think
not).

Thanks.


> 1) What is your definition of "connected at a particular point in
> time"? Does it just mean their port is live at the switch?
>
> 2) What model is the switch? Is it a managed switch?
>
> DS

sb5309@yahoo.com wrote:
> In my company, all PCs are connected to a 24-port Dlink switch [...]

> I want to find out how many PCs are connected at a particular point in
> time (not necessary browsing the net).

Replace the DLink with a managed switch.


> I can't see all connections by using the Windows Explorer (I am
> running XP on my PC).

This is a Linux newsgroup so any advice you get it likely to assume
you're going to be using Linux.

You could use an arp sniffer. Maybe arp-scan or arpwatch (Debian
packages) might help.

Chris

sb5309@yahoo.com writes:

> In my company, all PCs are connected to a 24-port Dlink switch. A
> broadband router is connected to this switch as well (where all
> internet traffic goes).
>
> I want to find out how many PCs are connected at a particular point in
> time (not necessary browsing the net).
>

You want a hub that allows port mirroring, and a network sniffer attached to that port.
Dell makes them. You can use wireshark for sniffing.


You could also try pinging the broadcast address, or asking the DHCP server.

Maxwell Lol writes:

> You could also try pinging the broadcast address, or asking the DHCP server.
Or nmap

On Sep 9, 9:58*pm, sb5...@yahoo.com wrote:

> By "connected" I mean PC is on, ie if someonw were to look at the
> front panel of the switch the LED is lighted; thus PC is on and the
> switch is "aware" of its presence. But I am at another floor, I want
> to find out from my location.

> The Switch is D-link Des1024R+; I am not sure it is managed ( I think
> not).

The switch isn't managed. Point a webcam at the switch's lights.

DS