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69 
Figure 11 
4.3.11.1 
Port Mapping 
Choose 
ADVANCED
> 
Network Tools
and click 
Port Mapping
. The page shown 
in the following figure appears.
In this page,
you can bind the WAN interface and 
the LAN interface to the same group. 
 
                 
                                
                    
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Click 
Add
to add port mapping. The page shown in the following figure appears. 
 
                 
                                
                    
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The procedure for creating a mapping group is as follows: 
 
                 
                                
                    
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Step 1 
Enter the group name. 
Step 2 
Select the WAN interface for your new group. 
Step 3 
Select the LAN interfaces from the 
Available Interface
list and click the 
<-
arrow button to add them to the grouped interface list, in order to 
create the required mapping of the ports. The group name must be 
unique. 
Step 4 
Enter the optional information of DHCP vendor IDs. 
Step 5 
Click 
Apply 
to save the settings. 
4.3.11.2 
IGMP 
Choose 
ADVANCED
> 
Network Tools
and click
IGMP
. The page shown in the 
following figure appears. When enable IGMP Snooping, the multicast data 
transmits through the specific LAN port which has received the request report. 
4.3.11.3 
Quality of Service 
Choose 
ADVANCED
> 
Network Tools
and click 
Quality of Service.
The page 
shown in the following figure appears.