Draytek Vigor C410 Series User Manual page 130

Source
Source IPv4 Address
Source IPv4 Subnet
Address
Source IP Object
Source IP Group
Type
Upload Limit
Download Limit
Cancel
Apply
After finishing this web page configuration, please click Apply to save the settings.
II-1-10-3 QoS Setup
QoS (Quality of Service) ensures that all LAN clients receive their fair share of bandwidth that is
required for applications to function properly and efficiently.
Without QoS, it is possible that certain applications may consume excessive network resources that
they degrade performance of more important applications, especially ones that are less tolerant of
jitter (delay variation) or lost or delayed packets. Additionally, at times of network congestion, QoS is
able to prioritize different types of traffic according to their predefined priority, thus ensuring traffic
of higher importance gets processed first.
A typical QoS deployment consists of two components:
Identify the object to which the bandwidth limit will be applied.
Any - All the IPs within the range defined will be restricted by

bandwidth limit defined by TX Limit and RX Limit below.
IPv4 Address

IPv4 Subnet

IP Object

IP Group

It is available when IPv4 Address is selected as the Source.
Click +Add to add a new entry.
IPv4 Address Start - The beginning IP address for this limit entry.

IPv4 Address End - The ending IP address for limit entry.

It is available when IPv4 Subnet is selected as the Source.
Click +Add to add a new entry.
IPv4 Address - Specify Start IP Address.

Subnet Mask - Select a Subnet Mask.

It is available when IP Object is selected as the Source.
All the IPs specified by the selected IP object will be restricted by
bandwidth limit defined by TX Limit and RX Limit below.
Click on +Add to open the IP object table. Select the IP object(s) and
click Close. A new entry will be added immediately.
It is available when IP Group is selected as the Source.
All the IPs specified by the selected IP group will be restricted by
bandwidth limit defined by TX Limit and RX Limit below.
Click on +Add to open the IP Group table. Select the IP group(s) and
click Close. A new entry will be added immediately.
Per Source IP Limit – The upload limit and the download limit will be
applied to the source IPv4 address, source IPv4 subnet address,
source IP object or source group selected as the Source.
Upstream speed limit for each LAN client. Value must be between 1
and 3999 (Mbps).
Downstream speed limit for each LAN client. Value must be between 1
and 3999 (Mbps).
Discard current settings and return to the previous page.
Save the current settings and exit the page.
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