Dell PowerConnect 6248 User's Guide - Page 734

Internet Group Management Protocol The Internet Group Management Protocol (IGMP) is used by IPv4 systems (hosts and routers) to report their IP multicast group memberships to any neighboring multicast routers. The PowerConnect 6200 Series performs the multicast router role of the IGMP protocol, which means it collects the membership information needed by the active multicast routing. The currently supported multicast routing protocols in the PowerConnect 6200 Series are DVMRP, PIM-DM, and PIM-SM. The PowerConnect 6200 Series supports IGMP Version 3. Version 3 adds support for source filtering, which is the ability for a system to report interest in receiving packets only from specific source addresses, as required to support Source-Specific Multicast [SSM], or from all but specific source addresses, sent to a particular multicast address. Version 3 is designed to be interoperable with Versions 1 and 2. The IGMP menu page contains links to web pages that define and display IGMP parameters and data. To display this page, click IPv4 Multicast →IGMP in the tree view. Following are the web pages accessible from this menu page: • IGMP Global Configuration • Routing Interface • Proxy Interface IGMP Global Configuration Use the IGMP Global Configuration page to set IGMP on the system to active or inactive. To display the page, click IPv4 Multicast →IGMP →Global Configuration in the tree view. Figure 12-14. IGMP Global Configuration The IGMP Global Configuration page contains the following field: • Admin Mode - Select Enable or Disable from the drop-down menu to set the administrative status of IGMP in the router to active or inactive. The default is Disable. Setting the IGMP Mode 1. Open the IGMP Global Configuration page. 734 Configuring IP Multicast