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ADSL Router User Manual 
 
104 
Source IP/ Subnet Mask/ Port:   
Key in the source IP address (ex.: 
192.168.1.0) and subnet mask (ex.: 
255.255.255.0) for the application (ex.: 
FTP, HTTP, and so on) that you want 
to invoke the QoS traffic rule. You may 
simply enter the source port, ranging 
from 0 to 65535, as the traffic 
condition. 
Destination IP/ Subnet Mask/ Port: 
Enter the destination IP address 
(ex.: 168.95.1.88) and subnet mask 
(ex.:255.255.255.0) for the application 
that you want to invoke the QoS traffic 
rule. Or simply enter the destination 
port
 for the traffic condition; it ranges 
from 1 to 65535. 
Traffic Priority/ DiffServ Class 
(DSCP)/ WAN 802.1p:   
Please refer to the Bridge QoS 
section
After finishing the settings, click 
Apply
, the new QoS setting will be 
shown as the example.   
According to the example, we set four 
rules for IP QoS. In traffic A, we set 
the destination port as 1-1024, and 
the traffic priority is low; in traffic B, the 
source port is from 201 to 8000, and 
the priority is medium; in traffic C
when the source IP is 192.168.1.0
subnet mask is 255.255.255.0, the 
traffic priority is high; in traffic D, when 
the traffic is heading to 168.95.1.88
the priority is high
To delete the rules you set, simply 
click the check button below Delete 
item and click Delete button. 
According to our example, the IP QoS configuration can be illustrated by the 
following figure. 
 
While there are many PCs 
getting online, the PCs 
using port 201-8000 to 
access the internet will have 
medium traffic priority, the 
PCs carrying 192.168.1.x/ 
255.255.255.0
 as IP 
address will have high 
traffic priority. In addition, 
PCs heading to port 1-1024 
will have a low priority, while 
the PCs accessing 
168.95.1.88 will have a high 
priority.