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While somewhat similar to the Routing menu, the MultiWAN Routing menu allows you to direct outbound traffic in multiwan scenarios.

Here, you can define advanced parameters to make a connection bind to a specific WAN interface. Where outbound traffic is directed will implicitly affect the corresponding (inbound) return traffic. A packet going to WAN0 should return only via the same interface.

On: When checked, this enables the routing rule on that line of the table.

Protocol: Lets you choose the transport protocols to be matched by the rule. Hundreds of L4 protocols exist. This setting refers to common ones.

• All Protocols * (Default).
• TCP + UDP
• TCP
• UDP
• ICMP

Source Address: Filters in the defined source of traffic.

• All - Filters in all LAN devices.
• IP - Lets you define a specific IP address or set of addresses.
  using a netmask syntax (e.g. 192.168.1.0/24).
• MAC - Binds the rule to a defined MAC Address only.

Destination Address: Similar to source address, this makes a more restrictive rule, based on destination address.

• All - All IP Addresses on the Internet.
• IP - One ore more IP Addresses (in netmask format).
• Domain - A destination domain.

Select WAN: (WANx) - Here, choose the logical interface where the defined outbound traffic will be directed.

Description: In this field, enter any notes to help you make management easier.

Note that Rules defined will take precedence over any WAN's weight-related setting.