User Define - D-Link DSL-2542B User Manual

Section 3 – Configuration
On this window, you can assign a Weight, on a percentage basis, to each
of the four priority queues. In addition, you can specify the number of
bytes from the beginning of a given packet's IP header to set a pointer.
From this pointer, you can then specify a Value (in hexadecimal) and a
Mask (in hexadecimal) for the Router to match when examining packets
crossing the specified priority queue. It is recommended that you not enter
a QoS scheme of this type unless you fully understand Offsets, pointers,
masks, and IP headers or you are instructed to do so by your ISP. When
you are finished, click Apply Settings and then click the Reboot button to
let your new settings take effect.
Here's an example of some typical User Defined IP QoS values:
Packet Value
IGMP 0x02
FTP 0x0015
IP Source 192.168.1.1 0xc0a80101
D-Link DSL-2542B User Manual

User Define

Mask IP Header Offset
0xff 9
0xffff 22 (destination port)
0xffffffff 12
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