IGMP (Internet Group Management Protocol) is the protocol used to support multicast groups. The latest version is version 2 (see RFC2236). IP hosts use IGMP to report their multicast group membership to any immediate-neighbor multicast routers so the multicast routers can decide if a multicast packet needs to be forwarded. At start up, the ZyAIR queries all directly connected networks to gather group membership.
After that, the ZyAIR updates the information by periodic queries.
The ZyAIR implementation of IGMP is also compatible with version 1.
The multicast setting can be turned on or off on Ethernet and remote nodes.
Menu 3.2 - TCP/IP and DHCP Ethernet Setup DHCP= Server TCP/IP Setup: Client IP Pool: Starting Address= 192.168.1.33 IP Address= 192.168.1.1 Size of Client IP Pool= 32 IP Subnet Mask= 255.255.255.0 First DNS Server= From ISP RIP Direction= Both IP Address= N/A Version= RIP-1 Second DNS Server= From ISP Multicast= IGMP-v2 IP Address= N/A Edit IP Alias= No Third DNS Server= From ISP IP Address= N/A DHCP Server Address= N/A Press ENTER to Confirm or ESC to Cancel: |
Enable IGMP in ZyAIR's remote node in menu 11.3:
Menu 11.3 - Remote Node Network Layer Options |
Key Settings:
Multicast | IGMP-v1 for IGMP version 1, IGMP-v2 for IGMP version 2. |
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