Users Manual Part 1

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In general, different Internet IP addresses represent different computers. The security concern
is that an IP address change during a session may be the result of an unauthorized intrusion
attempt. Therefore, to prevent damages from the potential intrusion, the session is terminated
upon the detection of an IP address change.
Pepwave routers can be configured to distribute data traffic across multiple WAN connections.
Also, the Internet IP depends on the WAN connections over which communication actually
takes place. As a result, a LAN client computer behind the Pepwave router may communicate
using multiple Internet IP addresses. For example, a LAN client computer behind a Pepwave
router with three WAN connections may communicate on the Internet using three different IP
addresses.
With the persistence feature, rules can be configured to enable client computers to persistently
utilize the same WAN connections for e-banking and other secure websites. As a result, a client
computer will communicate using one IP address, eliminating the issues mentioned above.
There are two persistent modes: By Source and By Destination.
By Source:
The same WAN connection will be used for traffic matching the rule and
originating from the same machine, regardless of its destination. This option
will provide the highest level of application compatibility.
By Destination:
The same WAN connection will be used for traffic matching the rule,
originating from the same machine, and going to the same destination. This
option can better distribute loads to WAN connections when there are only a
few client machines.
The default mode is By Source. When there are multiple client requests, they can be distributed
(persistently) to WAN connections with a weight. If you choose Auto in Load Distribution, the
weights will be automatically adjusted according to each WAN’s Downstream Bandwidth
which is specified in the WAN settings page). If you choose Custom, you can customize the
weight of each WAN manually by using the sliders.
15.2.3 Algorithm: Enforced
This setting specifies the WAN connection usage to be applied on the specified IP protocol and
port. This setting is applicable only when Algorithm is set to Enforced.