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Learn DNS Server Address During Negotiation: When this check box is selected, the Controller will
automatically learn the IP address of DNS server through DHCP messages received.
Preferred DNS Server: Statically designate the primary DNS server to be used by the system.
Alternate DNS Server: The substitute DNS server used by the system. This is an optional field.
PPPoE: If your ISP provides PPPoE Dialup connection, then the ISP will issue you an account with a password. You
would need to enter the account credential in the WAN configuration page for dialing up to the ISP.
Username: The username issued by your ISP as dial-up account.
Password: The dial-up password issued by your ISP.
MTU: Maximum Transmission Unit of a PPPoE frame. The PPPoE protocol allows an Ethernet frame's
size to be up to 1492 bytes, but some ISP's network equipments may support a smaller frame size of than
1492 bytes. In that case, you have to enter a smaller number MTU number to meet the ISP's networking
requirement.
Clamp MSS: Short for Maximum Segment Size for a TCP connection. An end-to-end TCP connection
over PPPoE will consume additional overhead out of each packet. At least 40 bytes are used for the
address. Hence, MSS must be smaller than MTU by at least 40.
Dial on demand function under PPPoE. If this function is enabled, a Maximum Idle Time will be
available for input a value. When the idle time is reached, the system will automatically disconnect itself.
Learn DNS Server Address During Negotiation: When this check box is selected, the Controller will
automatically learn the IP address of DNS server through DHCP messages received.
Preferred DNS Server: Statically designate the primary DNS server to be used by the system.
Alternate DNS Server: The substitute DNS server used by the system. This is an optional field.
5.4.
WAN Traffic Control
WAN Bandwidth
The entire system's uplink and downlink bandwidth can be customized. Go to Main Menu > System > WAN Traffic
The Uplink and Downlink bandwidth configured here is the combined bandwidth for WAN1 and WAN2. However,
please note that the actual bandwidth is still bounded by the network speed of your ISP operator. For instance the
network speed of your ISP is limited to 1Gbps, then the total throughput will not be greater than 1Gbps even if you
configure 2Gbps on the Controller.
WAN Failover & Load Balancing
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