IGMPLevel

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Data type

Range

Default value

REG_DWORD

0 | 1 | 2

2

Description

Determines the extent to which the system supports IP multicasting and participates in the Internet Group Management Protocol.

Value

Meaning

0

No multicast support.

1

Only send IP multicast packets.

2

Send and receive IP multicast packets (participate in IGMP).

Note Image Note

Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.