> -----Original Message----- > On Tue, Jan 02, 2007 at 06:48:05PM +0530, Praveen Lobo wrote: > > I have configured a switch in one of the UMLs (switch0). I > have two UML's > > (pc0 and pc1 ) communicating through the switch (switch0). > Now I want > > configure port mirroring on the switch. I would like to > know whether such > > configuration is possible or not. If yes, please let me > know the steps. > > What's port mirroring?
Jeff, Without knowing for certain, he is most likely trying to build the equivalent of a SPAN port or (Cisco) VSPAN. This is frequently used in networking to monitor traffic passing through arbitrary ports of a network switch. For example, my work uses this type of connection to monitor all traffic to/from our wireless network. Once configured on the network switch, we direct the SPAN traffic to a monitoring box that can perform traffic analysis and anomaly detection on everything passing through the specificied ports on the switch. This has helped us identify the causes of network outages, identify rogue DHCP servers, and monitor attempted compromises of our network as they occurred. In other words, it's a fancy form of network tap that can be placed simultaneously on multiple ports. While historically this wasn't needed, the widespread adoption of switches in place of hubs has made it a necessity for many forms of network remediation and monitoring. I would consider this a low priority, but it could be very helpful to have. Tony ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
