ZPHA Installation Guide
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WARNING! Do not connect both ZPHA devices directly to the IPS/TPS device using the
nonstandard USB power cable.
Crossover cable installation
Depending on your network environment, you might need to use a crossover cable to connect the
ZPHA device to your network configuration.
The TippingPoint IPS, TPS, and ZPHA device ports are all enabled with automatic
medium-dependent interface crossover (auto-MDIX). Auto-MDIX enables the devices to
automatically detect and activate the required cable connection type. However, if the network
devices connected to the ZPHA device are not auto-MDIX-enabled, you might still need to use a
crossover cable in your configuration.
The following figures display different installations of the ZPHA device in different network
environments.
When the network devices connected to the ZPHA device are different types, you do not need to
use a crossover cable. For example, if one of the network devices connected to the ZPHA device is
a data-terminal equipment (DTE) device, like a router, and the other network device connected to
the ZPHA device is a data-communication equipment (DCE) device, like a switch, use straight
cables for all connections. See
Figure 2-13, “ZPHA device cable configuration example 1
:
Figure 2-13
ZPHA device cable configuration example 1
