IronPort - advanced configuration guide

Chapter 1 Customizing Listeners
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Further, there are global settings that apply to all listeners, see Global Settings for Listeners, page 1-4
for more information.
When you create a listener, you specify the hosts that are allowed to connect to the listener through the
Host Access Table (HAT). For public listeners, you also define all domains that the appliance will accept
messages for using the Recipient Access Table (RAT). RATs apply only to public listeners. For more
information about Host Access Table and Recipient Access Table entries, see the “Configuring the
Gateway to Receive Mail” chapter in the Cisco IronPort AsyncOS for Email Configuration Guide.
Figure 1-1 illustrates public and private listeners as they can be used with a Cisco IronPort appliance
configured as an Enterprise Gateway. See also “Enterprise Gateway Configuration” in the Cisco IronPort
AsyncOS for Email Configuration Guide for more information.
Figure 1-1 Public and Private Listeners in an Enterprise Gateway Configuration
Configuring Listeners via the GUI
Use the Listeners page on the Network menu in the GUI to add additional listeners to your list of
currently configured listeners.
Note If you have completed the GUI’s System Setup Wizard (or the Command Line Interface systemsetup
command) as described in the “Setup and Installation” chapter of the Cisco IronPort AsyncOS for Email
Configuration Guide and committed the changes, at least one listener should already be configured on
your appliance. (Refer to the settings you entered in the “Create a Listener” section of the GUI System
Setup Wizard or the systemsetup command in the CLI.) The specific addresses to accept mail for were
also entered at that time, as well as the first SMTP routes entry.
SMTP
Public Listener:
“InboundMail”
IP interface: PublicNet (e.g. 1.2.3.4)
Ethernet interface: Data 2
Ethernet interface: Data 1
IP interface: PrivateNet (e.g. 10.x.x.x)
Private Listener:
“OutboundMail”
Groupware server Message generation system
Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
IronPort Email
Security appliance
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