The WebMux™ Model 480S, 580SG, and 680PG User Guide – Version 7.0.x
Copyright© 1997-2006 CAI Networks, Inc.
12
•
The registered Internet IP address range is a class C address range. The
IP address of the WebMuxes’ Virtual Farms must be in the same network
range as the Internet router.
•
The WebMux™ translates the Internet addresses to an internal non-
routable class A address. In this example, the subnet-mask is 255.0.0.0.
The IP address of the WebMux™ interfaces attached to the Server LAN
are 10.1.1.10 and 10.1.1.20.
•
The Default Gateway for all the servers is 10.1.1.1.
•
Farm 1 IP address is 205.133.156.200.
•
Servers 1 and 2 serve Farm 1.
•
Farm 2 IP address is 205.133.156.210.
•
Servers 2 and 3 serve Farm 2.
•
Changes to the servers: change default the gateway to 10.1.1.1, as well
as the IP addresses to the 10.3.1.10/20/30 addresses. If on the server
there is a service attached to the IP address (HTTP/S, FTP, etc), please
make sure the service will run on the new IP address.
NOTE:
Although the WebMux™ can work with any IP address range, all server IP addresses
should be Internet non-routable address so that the source address from the Internet does
not conflict with the IP addresses on the Server LAN.
NOTE:
If there is a firewall between the WebMux™ and the Internet Router, a rule must be
defined in the firewall to allow the IP address of the WebMux™ interfaces on the Router LAN
in addition to the farm IP address (could be same as the WebMux™ Router LAN IP address)
to communicate out to the Internet on all ports. Since the WebMux™ doing Network Address
Translation of the farm address to a non-routable address, the farm addresses on the
WebMux™ interface must communicate outbound on all ports defined in the farms.