Layer 2 Pass Through - D-Link NetDefendOS User Manual

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Interfaces: Select the interfaces to be in the group

3.4.11. Layer 2 Pass Through

On some interface types, NetDefendOS provides the ability to enable layer 2 pass through either

or both DHCP and non-IP protocols. Both are disabled by default but can be enabled on the

following interface configuration types:

Link Aggregation

In order for these options to functions, transparent mode must also be enabled directly on the

interface (it should not be enabled by manually adding switch routes).

As shown in the example below, pass through can be enabled separately or together for the

Example 3.27. Enabling Layer 2 Pass Through

This example enables transparent mode as well as DHCP pass through and non-IP protocol

passthrough on the interface if1.

Command-Line Interface

gw-world:/> set Interface Ethernet if1

Web Interface

Go to: Network > Interfaces and VPN > Ethernet

Select the interface if1.

Enter the following:

Enable Enable Transparent Mode

Note: L2TPv3 interfaces do not need transparent mode enabled

L2TPv3 interfaces in a NetDefendOS configuration do not have a property for enabling

transparent mode so this does not need to be enabled first before enabling DHCP or

non-IP protocol passthrough.

AutoSwitchRoute=yes

DHCPPassthrough=Yes

NonIPPassthrough=Yes

Chapter 3: Fundamentals

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