Руководство Пользователя для Cisco Cisco Email Security Appliance C190

Each Ethernet interface can have multiple IP interfaces assigned to it. An IP 
interface is a logical construct that associates an IP address and hostname with a 
physical Ethernet interface. If you decided to use both the Data 1 and Data 2 
Ethernet ports, you need the IP addresses and hostnames for both connections.

X1000/1050/1060, C60/600/650/660, and C30/300/350/360 customers: 
IronPort recommends using one of the physical Ethernet ports to connect directly 
to the Internet for the purposes of receiving inbound email through public 
listeners, and using another physical Ethernet port to connect directly to your 
internal network for the purposes of relaying outbound email through private 
listeners. 

C10/100/150/160 customers: By default, the 

systemsetup

 command will 

configure only one physical Ethernet port with one listener for receiving inbound 
email and relaying outbound email. 

When you configure an interface to relay outbound mail, the system turns on SSH 
for the interface as long as no public listeners are configured to use the interface. 

The following information is required:

A name (nickname) created by you to refer to the IP interface later. For 
example, if you are using one Ethernet port for your private network and the 
other for the public network, you may want to name them PrivateNet and 
PublicNet, respectively.

The names you define for interfaces are case-sensitive. AsyncOS will not allow 
you to create two identical interface names. For example, the names 

 

and 

 are considered as two different (unique) names. 

The IP address assigned by your network administrator.

The netmask of the interface. The netmask can be in standard dotted decimal 
form or hexadecimal form.

IP addresses within the same subnet cannot be configured on separate physical 
Ethernet interfaces. See 

more detailed information on Network and IP Address configuration.