<div class="content" name="IGMP_MIB_IF_GROUPS_LIST" uuid="8fc7a277-b135-47e2-af2a-65d16cb8f8ad"><p>The <b>IGMP_MIB_IF_GROUPS_LIST</b> structure is an MIB entry
that stores the list of multicast groups that are members of that interface.
This structure has variable length. The structure is followed by <b>NumGroups</b>
number of <a href="f4a610c9-dc21-41ee-b5f5-e7c86219f107" data-linktype="relative-path"><b>IGMP_MIB_GROUP_INFO (section 2.2.1.2.176)</b></a>
structures.  </p><dl>
<dd>
<div><pre> typedef struct _IGMP_MIB_IF_GROUPS_LIST {
   DWORD IfIndex;
   DWORD IpAddr;
   DWORD IfType;
   DWORD NumGroups;
   BYTE Buffer[1];
 } IGMP_MIB_IF_GROUPS_LIST,
  *PIGMP_MIB_IF_GROUPS_LIST;
</pre></div>
</dd></dl><p><b>IfIndex: </b>Index of the interface</p><p><b>IpAddr: </b>IP address of the interface</p><p><b>IfType: </b>Type of the interface, MUST be one of
the following values.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Value</p>
   </th>
   <th>
   <p>Meaning</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>IGMP_IF_NOT_RAS 0x00000001</td>
  <td>The interface is connected to a LAN</td>
 </tr><tr>
  <td>IGMP_IF_RAS_ROUTER 0x00000002</td>
  <td>The interface is connected to another router over RAS</td>
 </tr><tr>
  <td>IGMP_IF_RAS_SERVER 0x00000003</td>
  <td>The entry corresponds to a RAS server if it contains stats, then it represents summarized stats</td>
 </tr><tr>
  <td>IGMP_IF_RAS_CLIENT 0x00000004</td>
  <td>The entry corresponds to a RAS client</td>
 </tr><tr>
  <td>IGMP_IF_PROXY 0x00000008</td>
  <td>then one of the 1st 4 flags still will be set to enable switch from proxy to IGMP router</td>
 </tr></tbody></table>
</dd></dl><p><b>NumGroups: </b>Number of <b>IGMP_MIB_GROUP_INFO</b>
structures</p><p><b>Buffer: </b>MUST point to <b>IGMP_MIB_GROUP_INFO</b>.</p></div>