Use this procedure to configure IGMP router alert on a VLAN. The router alert feature instructs the router to drop control packets that do not have the router-alert flag in the IP header.
This procedure also allows you to configure IGMP snooping and proxy.
| Attention With IGMP snoop, the QueryInterval, Robustness, and Version values must be the same as those configured on the interface (VLAN) of the multicast router (IGMP querier). |
| Attention To maximize your network performance, Nortel recommends that you set the router alert parameter according to the version of IGMP currently in use:
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IGMP snoop, proxy, and router alert are all disabled by default.
Procedure steps
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| Step | Action |
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| 1 |
From the Device Manager menu bar, select VLAN > VLANs. The VLAN dialog box appears with the Basic tab displayed. |
| 2 |
Select a VLAN. |
| 3 |
Click IP. The IP, VLAN dialog box appears with the IP Address tab displayed. |
| 4 |
Click the IGMP tab. |
| 5 |
To enable the router alert option, select enable in the RouterAlertEnable box. |
| 6 |
To enable IGMP snoop, select the SnoopEnable box. |
| 7 |
To enable IGMP proxy, select the ProxySnoopEnable box. |
| 8 |
To configure the other IGMP properties, modify the values in the boxes provided. |
| 9 |
Click Apply. |
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