Netgear M4300-52G-PoE+ (GSM4352PA) - 48x1G PoE+ Stackable Managed Switch with 2x10GBASE-T and 2xSFP+ (550W PSU) Administrator's Guide

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DVMRP 
650
Managed Switches 
A screen similar to the following displays.
b.  For Admin Mode, select the Enable radio button.
c.  Click Apply.
6. 
Enable DVMRP on the switch.
a. Select Routing > Multicast > DVMRP > Global Configuration
A screen similar to the following displays.
b.  For Admin Mode, select the Enable radio button.
c.  Click Apply.
7. 
Enable DVMRP on the interface.
a. Select Routing > Multicast > DVMRP > Interface Configuration
A screen similar to the following displays.
b.  Scroll down select the Interface 1/0/11/0/13, and 1/0/21 check boxes.
c.  In the Interface Mode field, select 300.