User Guide

STEP 2. NETWORK
CHAPTER 4: INSTALLATION AND CONFIGURATION 57
8. Click Next.
The Routes for Management and Data Traffic page appears.
Data Enter the IP address, network mask, and hostname to use for data traffic.
If you configure the M1 interface for management traffic only, you must
configure the P1 interface for data traffic. However, you can configure the
P1 interface even when the M1 interface is used for both management and
data traffic.
You can use the Data interface for Web Proxy monitoring and optional L4
traffic monitoring. You can also configure this interface to support outbound
services, such as DNS, software upgrades, NTP, and traceroute data traffic.
Note: You can only enable and configure the P1 network interface for data
traffic in the System Setup Wizard. If you want to enable the P2 interface,
you must use the
ifconfig command after finishing the System Setup
Wizard. For more information about configuring the P2 interface, see
“Configuring Network Interfaces” on page 465.
L4 Traffic Monitor Choose the type of wired connections plugged into the “T” interfaces:
Duplex TAP. Choose Duplex TAP when the T1 port receives both
incoming and outgoing traffic. You can use half- or full-duplex Ethernet
connections.
Simplex TAP. Choose Simplex TAP when you connect the T1 port to the
internal network (traffic flows from the clients to the Internet) and you
connect the T2 port to the external network (traffic flows from the
Internet to the clients).
IronPort recommends using Simplex when possible because it can increase
performance and security.
Table 4-4 Network Interfaces and Wiring Options in System Setup Wizard (Continued)
Option Description