Question on SNMP

[BlackEvo]

Is SNMP only involved in ports? and if not, can you allow the brige, or switch to learn what addresses can or can not leave a company?

 

[narnian]

SNMP is purely a means of remotely monitoring or controlling a agent. Normally this agent will have access to the "real" variables that are measured by or are used by the device. This real aspect could be anything, from the normal port level statistics on network switch, through to the process table on a server, through to the temperature setting on an air conditioner. For any of this to happen the device agent needs to be programmed to send/receive data fora specific MIB, which is bit like a entry in "yellow pages" telephone book.

Your question isn't all that clear, but yes mid to high-end network equipment (routers/bridges/switches) will record things like MAC addresses in the forwarding tables, ARP address mapping, etc. The support for a particular SNMP feature is defined by the MIBs that they support. Most equipment manufacturers publish the standard MIBs they support (usually referenced by the RFC) and also they usually distribute a ZIP file containing all their private or enterprise MIBs which are proprietary to their equipment. ---------------------------------------
I'm just trying to help, and am not a spokesman for HP