I. Device Login
1. Preparation
Before configuring the device, set your computer's wired network interface IP address to the same subnet as the MOXA security router's management address. The default management address for the MOXA security router is 192.168.127.254/24; in the example below, the computer is set to 192.168.127.99/24 (any address within the same subnet is acceptable).
2. Device Login
1) Open a web browser, enter the device's management address into the address bar, and press Enter to access the login page;
2) Enter the username and password (default username: admin; default password: moxa), then click "Login";
II. QoS Configuration
II. QoS Configuration
The QoS (Quality of Service) function is used to classify traffic, mark priorities, and control queue scheduling for different types of service traffic. By properly configuring QoS, the device can assign higher forwarding priority to critical service traffic, ensuring its real-time performance and stability during network congestion.
This device supports the following QoS configuration functions:
CoS Mapping: Configures the mapping between Layer 2 priority and the device's internal transmit queues.
DSCP Mapping: Configures the mapping between Layer 3 packets and the device's internal priority levels.
Port Classification: Assigns priority to traffic entering through different ports.
1. CoS Mapping Configuration
CoS Mapping is used to configure the correspondence between the Layer 2 priority (CoS) of a packet and the device's internal transmit queues (Priority Queues). Upon receiving a packet, the device assigns it to the corresponding queue based on its CoS value for subsequent scheduling and forwarding.
Configuration Steps:
1) After entering the main device management interface, navigate to "Network Configuration" > "Layer 2 Switching" > "QoS," and click "CoS Mapping" on the QoS settings page.
2) Locate the CoS entry you wish to modify, click the edit icon "
" next to the corresponding row, set the desired Priority Queue, and click "Apply" to save the settings.
Description:
CoS mapping determines the internal queue assignment rules for the device. For example, if a packet has a CoS value of 6 and the device is configured with the mapping CoS 6 → Queue 6, the packet will be assigned to a higher-priority transmission queue, thereby receiving higher priority during subsequent forwarding.
2. DSCP Mapping Configuration
DSCP mapping is used to map traffic priorities based on the DSCP (Differentiated Services Code Point) values found in IP packets. When the device receives a Layer 3 packet with a DSCP tag, it uses this mapping to convert the tag into an internal priority level, facilitating subsequent queue scheduling and forwarding.
This feature is suitable for scenarios requiring traffic differentiation based on Layer 3 service priority tags.
Configuration Steps:
1) After accessing the device management interface, navigate to "Network Configuration" > "Layer 2 Switching" > "QoS," and click "DSCP Mapping" on the QoS settings page;
2) Locate the DSCP entry you wish to modify, click the edit icon next to the corresponding row, set the desired Level value based on service requirements, and click "Apply" to save the settings.
Parameter Definitions:
DSCP: Differentiated Services Code Point in an IP packet, used to identify the packet's service class.
Level: Internal device priority level; the device uses this level to determine subsequent processing.
Note:
When the DSCP inspection function is enabled, received IP packets are mapped to corresponding priority levels based on their DSCP values. If a DSCP value maps to a higher Level, traffic of that type is forwarded with higher priority within the device.
If DSCP tagging is not used in the current network, or if there is no requirement to differentiate services based on Layer 3 priority, it is recommended to retain the default configuration.
3. Port Classification Settings (Port Priority)
Port Classification is used to assign priority levels to traffic entering through specific ports. Priority values can be configured for different ports; upon receiving traffic from a port, the device performs subsequent mapping and forwarding based on the configured priority.
Configuration Steps:
1) After accessing the device management interface, navigate to "Network Configuration" > "Layer 2 Switching" > "QoS". On the QoS settings page, click "Port Classification" to assign priority levels to different network ports (e.g., assigning high priority to a port connected to a PLC).
2) Click the edit icon next to the corresponding port, set the "Priority" value according to your business requirements (the port priority range is 0–7; a higher value indicates higher priority), and click "Apply" to save.
Parameter Descriptions:
Inspect ToS: Whether to inspect ToS/DSCP information in IP packets.
Inspect CoS: Whether to inspect CoS information in Layer 2 packets.
Priority: Port priority; the range is 0–7.
Note:
Port Classification serves to classify port traffic by priority. Port priority must be used in conjunction with CoS mapping or internal device queue mapping rules to determine the final egress queue for the traffic. For example:
Port Priority = 6
CoS mapping is configured such that CoS 6 → Queue 6
In this case, traffic from the port will ultimately enter Queue 6 and receive higher priority for forwarding during transmission.
Post time: Sep-11-2026