User Guide

NETNode Operations Guide
Commercial in
Confidence
IP Mesh Systems
000-130
R1.8 2015-07-24
Commercial in
Confidence
Page 2-40
Figure 2-15 VLAN Tagging and Stripping
In the example above Ethernet Port 1 is acting as a typical Ethernet port enabling you to
web browse as normal into the radio and send data across the radio network on the same IP
address range as the radio IP addresses.
Ethernet Port 2 is configured to support a VLAN with a Tag of 1531.
About the VLAN Tagging 2.12.1
VLAN tagging adds the VLAN tag as the packet enters the NETNode port and removes it
again when a VLAN packet of the correct tag exits. Only VLAN packets with the correct tag
will exit the port.
This is selected by Global Settings Ethn Mode LAN<->VLAN.
The tag number and priority must also be specified.
Using VLAN Tagging 2.12.2
Suppose the system administrator wishes a camera to be connected to each NETNode, but
each on a separate network so that individual users cannot snoop onto other cameras, or
change the configuration of the Mesh system.
Connecting the camera to each NETNode and setting the Ethernet port using different VLAN
tags for each NETNode would enable this.
The endpoint node could pass the VLAN tags unaltered by setting:
Global Settings Ethn Mode Transparent, and programming all eight VLAN
addresses and tags in this node.
The endpoint node could then be connected to an external intelligent router which puts out
the separate LAN networks out on separate ports. In this example the endpoint would
typically be at the HQ building.
About VLAN Stripping 2.12.3
VLAN stripping removes the VLAN tag as the packet enters the port and adds it again when
the packet exits. This is selected by:
Global Settings Ethn Mode VLAN<->LAN.
The tag number and priority must also be specified.