Correlate ARP cache to bridge tables. You can do it from your core switches as a start. It's THE best way for finding anything talking on your network.
- billn On Sun, 28 Oct 2007, Sami Joseph wrote: > Hi Roland, > > Thanks. > > The point is i dont really know all the devices we have, so i cant be sure > that they all have snmp and CDP configured. > > Is there a way around that? > > on the top of my head, i would do a port scan and based on that i would go > into each device and make sure each has SNMP and CDP before i start > discovering. > > Which open source one would you recommend ? > > How about CiscoWorks? > > Thanks, > Sam > > On 10/28/07, Roland Dobbins <[EMAIL PROTECTED]> wrote: > > > > > > On Oct 28, 2007, at 3:27 PM, Roger Oliver wrote: > > > > > I'm very interested to hear what others do. > > > > PacketDesign RouteExplorer does good visualizations based upon BGP > > and IGP, and Narus InSight Manager does visualization based upon > > BGP. There are also tools like lanmap, which watch packets via RSPAN > > in a given locality. > > > > Several of the open source and commercial NMS systems do SNMP-based > > autodiscovery; it's important to test these out and ensure they're > > tuned not to be overly aggressive prior to running the autodiscovery, > > monitor your network while it's taking place, do it during a > > maintenance window, etc. > > > > Some folks use GraphViz with a bit of Perl-fu on their configs to > > generate graphs, too. > > > > ----------------------------------------------------------------------- > > Roland Dobbins <[EMAIL PROTECTED]> // 408.527.6376 voice > > > > I don't sound like nobody. > > > > -- Elvis Presley > > > > _______________________________________________ > > cisco-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
