Operation Manual

Chapter 5 Broadband

SBG3300-N Series User’s Guide

5.7.2 How to Configure multi-WAN for Load Balancing and Failover

This example shows you how to configure multi-WAN for three WAN connections: an Ethernet WAN

connection, an ADSL WAN connection, and a 3G (cellular) WAN connection. The available bandwidth

for the Ethernet WAN connection is 3 Mbps, and the available bandwidth for the ADSL WAN

connection is 1 Mbps.

As these two wired WAN connections have different bandwidths, you can set multi-WAN to send

traffic over these WAN connections in a 3:1 ratio. Most 3G WAN connections charge the user for the

amount of data sent, so you can set multi-WAN to send traffic over the 3G WAN connection only if

all other WAN connections are unavailable.

5.7.2.1 Configuring multi-WAN

1 Click Network Setting > Broadband > multi-WAN. By default, all available WAN connections on

the Device are in active mode with a weight of 1, except for the 3G WAN connection which is set to

passive mode.

2 Click the Delete icon next to the VDSL WAN connection as it is not needed in this example.

Check Method Select the connectivity check method that the gateway allows.

Select ICMP to have the Device regularly ping the gateway you specify to make sure it is

still available.

Select TCP to have the Device regularly perform a TCP handshake with the gateway you

specify to make sure it is still available.

Period Enter the number of seconds between connection check attempts.

Timeout Enter the number of seconds to wait for a response before the attempt is a failure.

Tolerance Enter the number of consecutive failures before the Device stops routing through the

gateway.

Target Port This field applies when you set the Check Method to TCP. Specify the port number to use

for a TCP connectivity check.

Target IP Have the Device check the connection to the WAN default gateway or select User

defined address and specify a domain name or IP address for the connectivity check.

Apply Click Apply to save your changes.

Cancel Click Cancel to exit this screen without saving.

Table 17 multi-WAN: Add/Edit (continued)

LABEL DESCRIPTION