diff --git a/configs/ct/ct-noc-a8325-b.cfg b/configs/ct/ct-noc-a8325-b.cfg
index 67d8f0f..bc5c5fc 100644
--- a/configs/ct/ct-noc-a8325-b.cfg
+++ b/configs/ct/ct-noc-a8325-b.cfg
@@ -1085,6 +1085,7 @@ interface vlan 30
     ip helper-address 10.1.40.189
     ip helper-address 10.21.48.20
     ip ospf 1 area 0.0.0.0
+    ip igmp enable
     ip pim-sparse enable
 interface vlan 35
     description Wireless Controller Admin
@@ -1129,6 +1130,7 @@ interface vlan 50
     ip helper-address 10.1.40.189
     ip helper-address 10.21.48.20
     ip ospf 1 area 0.0.0.0
+    ip igmp enable
     ip pim-sparse enable
 interface vlan 60
     description Z-Band Video