User guide

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through the real network interface. In other words, the loopback adapter cannot have
the gateway specified. Please refer to Appendix A and B for more details on how to
configure the loopback adapter on servers. In case the server is running Windows
2003/2008, the route created when adding loopback adapter cannot be deleted; please
make sure the loopback adapter metric has a higher number. 2) If your service binds to
any specific IP address, add the loopback adapter’s IP address to that service.
The firewall configuration must be changed to point to the new farm address on the WebMux.
Since the WebMux always uses one IP address in the server LAN, the farm address must be a
different IP address in the server LAN in Out-of-Path Mode.
Out-of-Path Mode also allows two WebMuxes to fully backup each other. The two
WebMuxes are connected to each other through a cross-over Ethernet cable or with a hub or
switch in between.
Note Under normal Out-of-Path operations, you will only need to set the external
gateway IP address for the WebMux. However, if you are going to have the WebMux do
SSL termination or Layer 7 load balancing, you must set a “server LAN gateway” IP in
the WebMux and have the servers’ default gateway point to that IP address.
4.6 IPV6 Consideration
WebMux can load balance IPV4 and IPV6 traffic in all above modes. Both IPV4 and IPV6
can work in L4 and L7. Simply specifying the IPV6 prefix will enable WebMux load balance
IPV6 only or IPV6/IPV4 mixed traffic. However, if public side is IPV6 and local side is IPV4,
load balancing farm must be L7. If the protocol is not in the list, please select “L7 generic
TCP load directing”.