Cisco Cisco Email Security Appliance C160 Mode D'Emploi

Most users take advantage of the two Data Ethernet ports on the Cisco IronPort 
appliance by connecting to two networks from the appliance:

The private network accepts and delivers messages to your internal systems.

The public network accepts and delivers messages to the Internet.

Other users may want to use only one Data port serving both functions. Although 
the Management Ethernet port can support any function, it is preconfigured for 
access to the graphical user interface and the command line interface.

You can segregate incoming and outgoing email traffic over separate listeners and 
on separate IP addresses. However, the System Setup Wizard on the appliance 
supports initial configuration of the following configurations:

2 separate listeners on 2 logical IP addresses configured on separate physical 
interfaces
— segregates incoming and outgoing traffic 

1 listener on 1 logical IP address configured on one physical interface
— combines both incoming and outgoing traffic

You will need the following network information about each Ethernet port that 
you choose to use:

IP address

Netmask

In addition, you will need the following information about your overall network:

IP address of the default router (gateway) on your network

IP address and hostname of your DNS servers (not required if you want to use 
Internet root servers)