Cisco Cisco Email Security Appliance C190 User Guide

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3-6
Cisco AsyncOS 8.0.1 for Email User Guide
 
Chapter 3      Setup and Installation
  Preparing for System Setup
Figure 3-2
One Listener Configuration 
Preparing for System Setup
Notes: 
1 Listener
1 IP addresses
1 Ethernet interface
SMTP routes configured
Inbound Listener: “InboundMail” (public)
IP address: 1.2.3.4
Listener on the Data2 interface listens on 
port 25
HAT (accept ALL) includes entries for 
Groupware servers in RELAYLIST
RAT (accept mail for local domains; reject 
ALL)
DNS can be configured to use Internet Root 
servers or internal DNS servers
SMTP routes direct mail to proper groupware 
server
Firewall ports opened for appropriate services to 
and from the Cisco appliance
Do This 
More Information
Step 1
Determine how you will connect to the 
appliance.
See 
Step 2
Determine network and IP address 
assignments.
If you have already cabled your 
appliance to your network, ensure that 
the default IP address for the Cisco 
appliance does not conflict with other 
IP addresses on your network.
Step 3
Gather information about your system 
setup.
See 
Firewall
Ethernet interface: Data 1
IP interface: PublicNet (e.g. 1.2.3.4)
Public Listener: 
“AllMail” 
SMTP
Internet
Groupware server
(Exchange™, Domino™, 
Groupwise™)