Cisco Cisco Email Security Appliance C170 Guia Do Utilizador
3-7
Cisco AsyncOS 9.0 for Email User Guide
Chapter 3 Setup and Installation
Physically Connecting the Email Security Appliance to the Network
Figure 3-2
One Listener Configuration
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
port 25
•
HAT (accept ALL) includes entries for
Groupware servers in RELAYLIST
Groupware servers in RELAYLIST
•
RAT (accept mail for local domains; reject
ALL)
ALL)
DNS can be configured to use Internet Root
servers or internal DNS servers
servers or internal DNS servers
SMTP routes direct mail to proper groupware
server
server
Firewall ports opened for appropriate services to
and from the appliance
and from the appliance
Firewall
Ethernet interface: Data 1
IP interface: PublicNet (e.g. 1.2.3.4)
Public Listener:
“AllMail”
SMTP
Internet
Groupware server
(Exchange™, Domino™,
Groupwise™)