User manual

The WebMux Pro and Model WM108E User Guide – Version 5. 8 Rev15

server. From version 5.6, name label also being used to check HTTP layer 7

protocols as part MIME header in virtual hosting. The format of the farm name

label will be www.xyz.com, max length 75 bytes. If the server returns error code

401, WebMux consider that server dead. For both IIS and Apache servers doing

virtual hosting, farm name label must be an existing web site name on the server.

For more information on Virtual hosting, please go to Appendix 4 for details.

In NAT mode, if you use WebMux for your intranet, then the farm IP address will

be the IP address of the original web or application server. The IP addresses of

the original web or application servers must be changed so that the WebMux can

translate farm IP address to the server IP address. You can use WebMux Router

LAN IP address as your farm address. You can add multiple farms to this IP

address, as long as the port number is different. So you can save real IP address.

In this mode (NAT), WebMux acts as a firewall also. All servers behind WebMux

can reach to the outside through WebMux. From outside, the traffic can be seen

all come from WebMux router LAN IP address, or proxy address. If a WebMux is

placed behind a firewall, please consider the rules for proxy address. All farms IP

addresses should have rules to allow incoming traffic to the address and port

number, as well as return traffic for each farm IP address from any port to

anywhere.

In Out-of-Path mode, farm(s) must be a different IP address than the WebMux

Server LAN IP address. At this mode, only server LAN cable is connected.

Multiple farms can be added to one IP address, as long as the port number is

different from each other. In this mode, each server must add a loopback

adapter and under Windows server, the route for the loopback adapter must be

removed. Please refer to Appendix 1 and 2 for more detailed procedures.

WebMux has been tested extensively working with all versions of Windows,

Linux and HP-UX 11.X under this mode. Other OS should also working fine.

Caution: Once a new farm is added, the IP address of the farm cannot be changed. To

correct the IP address, the old farm has to be deleted and a new one to be created.

Port:

This is the port number for the farm. If you are choosing one of the known

services below, you do not have to specify anything in this field. However, if the

service you choose is not listed in the list below, you will need to specify a port

number here. For example, for MS Terminal Services, use port number 3389.

Service:

This is the service of the new farm. Select a service type to create a farm using

its well-known port. If a port other than a well-known port for TCP or UDP

service is to be used, then choose one of the “Generic” selections, and enter the

port number in the PORT NUMBER box. No port number needed to be specified,

if the service protocol is on the list. WebMux has level 7 protocol checks for the