WebMux – Adding a Management LAN

Problem:

Adding an IP address that will connect to a Management LAN.

Some environments have separate logical or physical LANs for management of network resources. We will walk through how to add an IP address in a couple of scenarios.

Background:

This task has two steps:

  1. Add the configuration.
  2. Add it to the startup script using the WebMux sysint

We are omitting a default gateway because it is presumed the Management LAN is local. We do not want to get into all of the ramifications of adding another route to the WebMux. Consider that carefully before adding a gateway parameter to the ifconfig common described below.

Scenario One: Model 690PG or Model 4xx

The Model 690PG has multiple switch ports. This Configuration provides a management IP address on any internal port. The 4xx series WebMux do not have a separate physical NIC but the logical separation at the IP level can be accomplished by adding the IP address.

$ ifconfig ethbo:MGMT 10.1.1.6 netmask 255.255.255.0 up

The IP address 10.1.1.6 is assigned on what would be the Management network. Plug in your IP and Subnet Mask to match your requirements.

Scenario Two: Model 5xx

WebMux units with an extra NIC, marked “N/C,” can use that interface for the management network. This adds physical separation if that interface has not been bonded to other for maximum throughput.

$ ifconfig ethxo:MGMT netmask up

Adding the Command to Startup Using sysint

Recall that the ifconfig command is lost during a reboot. Follow these steps to make it part of the startup script. If you have existing startup commands you will need to copy them into a text editor, and the new commands, and copy everything to feed to sysinit. Run sysinit by itself to see if there are existing command startups.

To add a command to the startup, run:

$ sysinit –write

Paste the following commands into sysinit, and hit [Ctrl]–d to end.
WebMux Model 690PG and 4xx
$ sysinit

sysinit: reading sysinit file:

sysinit: sysinit file does not exist [done] $ sysinit – write

sysinit: Enter new script up to EOF (ctrl-D):

ifconfig ethbo:MGMT 10.1.1.6 netmask 255.255.255.0 up

sysinit: You entered 54 bytes [done] $
WebMux Model 5xx Series
$ sysinit

sysinit: reading sysinit file:

sysinit: sysinit file does not exist [done]$ sysinit –write

sysinit: Enter new script up to EOF (ctrl–D):

ifconfig ethxo:MGMT 10.1.1.6 netmask 225.225.225.0 up

sysinit: You entered 54 bytes [done] $

To confirm the entry, you can run the command by itself to get the output: $ sysinit

Please visit this page on how to set up star up commands if you have more questions:

http://www.avanu.com/techtips/startup

To remove the startup script, run the command again with no input, and hit Ctrl-D.

In case of emergency, use the LCD factory reset to clear the sysinit table. This is especially helpful if the wrong command caused a failure and the user can no longer log in to WebMux. But be careful – this will wipe out all WebMux configurations, including hostname, IP address, farms, etc.