52
WebMux is connected must also be configured correctly to use these tags. (When
additional networks are configured for the WebMux using the superuser’s command line
utility nwconfig, you may also arrange for their VLAN tagging at that time).
Besides configuring the WebMux to use VLAN tags, the switches to which the WebMux is
connected must be configured to use these tags. In most switches, there are three items to
be addressed when setting up VLANs: the VLAN name, the port participation, and if it will be
tagged or untagged.
First a VLAN must be chosen and named. Choosing a VLAN name on the switch does not
automatically determine whether its VLAN is tagged or untagged. It merely an identifier for
your own record.
Once the VLAN name has been chosen, you must next select which ports participate in this
VLAN. If the port selection does not match the physical connectivity, traffic will not pass.
The third (very important) setting to make sure is that the port on the switch connected to
the WebMux will accept correctly tagged VLAN packets only. In some switches, you must
first configure the port to use “general” mode and then specify that the port will be tagged. If
you plan to use more than one VLAN, you may configure the switch port to be a trunk port,
or add multiple VLAN tags to it.
At this point you should be able to access the WebMux from other devices that are also
using the same tagged VLAN ID.
There are some specific considerations when configuring VLAN IDs in NAT, Transparent, or
Out-of- Path Mode. In NAT mode, you have the option to have a VLAN ID for both the
Router (Internet) LAN interface and the Server LAN interface. Even though the WebMux will
allow for both sides to have the same VLAN ID, it is still recommended that you have a
different VLAN ID for each to ensure complete network separation between both sides.
In Transparent mode, you will only have one Bridge IP address, but you will need to create a
VLAN ID on both the Router (Internet) LAN interface and the Server LAN interface. The
WebMux will allow you to create the same VLAN ID on both interfaces, but this is not
recommended unless each physical side is on physically separate switches, completely
isolated from each other. Be wary of routing loops.
In Direct Server Return Mode, you only have one VLAN ID to assign for the original network
since the WebMux only uses one network for both incoming traffic from clients and outgoing
traffic to the servers. In Direct Server Return Mode, the Internet LAN interface and Server
LAN interface are bonded in a Link Aggregation Group, and both interfaces have identical
configuration (unless the port bonding is
specifically disabled
— reference section on
Bond all Interfaces Setup within this User Manual).
Multiple Uplink/VLAN Support
The WebMux supports load balancing multiple uplink capabilities. You can configure this
feature using the command line interface command:
nwconfig
—additional network configuration add/list/delete/install tool
