In LANconfig you configure the general IGMP parameters under via IGMP parameter.
- Interface
- Name of the interface that the IGMP configuration applies to. The entry named DEFAULT applies to all interfaces without a specific entry. If there is no DEFAULT entry, the internal default values for a DEFAULT entry still apply. Possible values are DEFAULT, IPv4 networks, e.g. INTRANET or IPv4 (WAN) remotes. Also allowed are wildcard entries with * for RAS interfaces, e.g. "VPN*".
- Robustness variable
- Number of IGMP message repeats. (1-10; Default: 2)
- Unsolicited report interval
- Specifies the time between repetitions of a host's initial report of membership in a group. (1-25 seconds; Default: 2)
- Query interval
- Interval between IGMP general queries. (2-99999 seconds; Default: 125)
- Query response interval
- Maximum response time. The maximum response time is inserted into periodic general queries. The value for the query response interval must be less than the value for query interval. (1-999999 milliseconds; Default: 10000)
- Startup query interval
- The interval between IGMP general queries sent after the querier starts up. (1-99998 seconds; Default: 30)
- Startup query count
- Number of IGMP general queries sent on startup, separated by the startup query interval. (1-10; Default: 2)
- Last listener query interval
- Specifies the value of the Maximum Response Time in Multicast Address-Specific Queries that are sent in response to Done messages. The parameter also specifies the time between multicast address-specific queries. (1-25 seconds; Default: 2)
- Last listener query count
- Number of multicast address-specific queries sent before the router assumes that there are no more local listeners. It also specifies the number of multicast address-specific queries sent before the router assumes there are no more listeners of a particular source. (1-10; Default: 2)
- IGMP compatibility mode
- IGMP version used by the device when operating as a multicast router. Possible values: Off, V1, V2, V3. (default: V3)
- Quick leave
- Enables receivers to leave multicast groups quickly. This should only be used if there is only one receiver per group on the interface. Internally, the Last Listener Query Count parameter is set to 1 and the Last Listener Query Interval is set to 20 ms. Possible values: Yes, No (default: No)
