Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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. This is can be an IPv4 or IPv6 address, You 
can assign both types of IP addresses to a single IP interface.

The netmask of the interface. The netmask must be in CIDR format. For example, use 

/24

 for the 

255.255.255.0 subnet.

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

for more detailed information on Network and IP 

Address configuration. 

For C170 customers, the Data 2 interface is configured first.

In the next portion of the 

systemsetup

 command, you type the IP address of the default router (gateway) 

on your network.

In the next portion of the 

systemsetup

 command, you enable the web interface for the appliance (for the 

Management Ethernet interface). You can also choose to run the web interface over secure HTTP 
(

https

). If you choose to use HTTPS, the system will use a demonstration certificate until you upload 

your own certificate. For more information, see 

Next, you configure the DNS (Domain Name Service) settings. Cisco AsyncOS contains a 
high-performance internal DNS resolver/cache that can query the Internet’s root servers directly, or the 
system can use your own DNS servers. If you choose to use your own servers, you will need to supply 
the IP address and hostname of each DNS server. You can enter as many DNS servers as you need (each 
server will have a priority of 0.). By default, 

systemsetup

 prompts you to enter the addresses for your 

own DNS servers.