QoS Rules for traffic control in D-Link DIR-615 HW ver T1 FW Ver 20.07
Problem: I am on 4Mbps plan which drops to 1Mbps after 25GB usage. My family members/guests don't know how or forget to decrease YouTube Video resolution and use up 25GB data in a week.
Task: Assigning certain devices low bandwidth (LB Devices) with out affecting other High Bandwidth devices (HB Devices)
Solution:
1) Go to 192.168.0.1 -> Setup -> Local Network -> DHCP Static IP Configuration, Assign Static IPs to HB devices starting from 192.168.0.34
2) Go to 192.168.0.1 -> Advanced -> Traffic Control -> QoS Rules -> Add, Fill in the following details and click Add
Protocol : None
Source IP: 192.168.0.1
Source NetMask: 255.255.255.224
Destination IP: 0.0.0.0
Dest NetMask: 0.0.0.0
Source/Dest Port are blanked out
Fill your required values for up/down floor/ceiling rates.
This rule will limit the bandwidth for devices from 192.168.0.2 to 192.168.0.33 to any WAN IPv4 address. I tested this rule on my devices with speedtest.net, fast.com, torrents and it seems to be working.
Let me know if you face any problems after this rule is implemented.
PS: If you want to allot bandwidth for each device you can do it by assigning the device a static IP. Use that static IP for source IP and 255.255.255.255 as Source NetMask.