On Wed, 19 Nov 2003, James Kosin wrote: > > 3) Some switches may have ways of monitoring network activity. Don't ask > me witch ones..... I really don't know. I at first thought Peter was wanting to do dicovery of routers. Discovery of switches is of course a lot harder. You are talking about unmanaged switches here. In order to do a discovery, you need an SNMP managed switch (or switches). A snmpwalk of the switch will give information of the MAC addresses attached to each port. You match up the MAC address with the IP of the host - or a downstream switch of course - in order to build up the topology. I'm of course assuming that the hosts are on the same subnet as you, so an arp will get you the MAC/IP pairing. I think this is going off-topic for this list.
