D-Link DFL-700 - Manual (Page 127)

Now all FTP traffic from 192.168.1.125 on the LAN network will be limited to 400kbit/s in
both directions. If more than one IP is required, a comma-separated list or a network can be
entered (eg 192.168.1.125, 192.168.1.126 or 192.168.1.0/24).
Guarantee bandwidth to a service
To set up traffic shaping to guarantee a service a certain amount of bandwidth, follow
these steps:
1. Set the interface speed for the WAN interface under System->Interfaces:
Click Edit for the WAN interface.
Check the Traffic shaping checkbox.
Enter upstream bandwidth: 2000 (2mbit/s)
Enter downstream bandwidth: 2000 (2mbit/s)
Click Apply
2. Create a new policy rule. Under Firewall->Policy click LAN->WAN.
Click Add new.
3. Setup the new policy:
Name the rule allow_ftp
Set position to 2
Set action to allow