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airMAX - How to Enable Passing of LLDP Packets on airMAX M and AC

Overview

This article describes how to enable the passing of LLDP packets on airMAX M and AC.

NOTES & REQUIREMENTS:This article applies to firmware airOS v6+ for M devices and airOS v8+ for AC devices.

Table of Contents

  1. Introduction
  2. Steps: How to Enable Passing of LLDP Packets
  3. Related Articles

Introduction

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When an airMAX radio is in its default bridging configuration, it will not pass LLDP packets. As of airOS v6 and v8 (platform M and AC respectively), we've added the ability to pass LLDP packets by editing the system.cfg. 

Steps: How to Enable Passing of LLDP Packets

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  1. Download the current radio config from System > Back Up Configuration.
  2. Open the .cfg backup in a good text editor like  Notepad++  or Brackets.
  3. Navigate to the bridge section. Radios with one bridge should look like this: 
  4. bridge.1.devname=br0 tell us that the bridge index for bridge0 is 1.  For most users this will be the case.  If you have more than one bridge, you need to select the bridge.index for the bridge you want to pass LLDP packets on.
  5. Now that we know the bridge.index we want to enable LLDP on, we will add the following line to the bottom of the configuration backup we made earlier. bridge.1.fwd.gmask=16384 (replace 1 with your bridge.index).
  6. Save the changes made to the CFG backup in your text editor and upload to the radio.  System > Upload Configuration.
  7. Repeat these steps on the other side of the link.

Related Articles

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airMAX - Management VLAN

airMAX - How to Set Up RADIUS Server Authentication on airOS Devices (FreeRadius) 

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