Cisco Cisco Email Security Appliance C160 Guía Del Usuario
C-579
Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
A P P E N D I X
C
Firewall Information
The following table lists the possible ports that may need to be opened for proper
operation of the IronPort appliance (these are the default values).
operation of the IronPort appliance (these are the default values).
Table C-1
Firewall Ports
Port
Protocol
In/Out
Hostname
Description
20/21
TCP
In or Out
AsyncOS IPs, FTP Server FTP for aggregation of log files.
22
TCP
In
AsyncOS IPs
SSH access to the CLI, aggregation of
log files.
log files.
22
TCP
Out
SSH Server
SSH aggregation of log files.
22
TCP
Out
SCP Server
SCP Push to log server
23
Telnet
In
AsyncOS IPs
Telnet access to the CLI, aggregation of
log files.
log files.
23
Telnet
Out
Telnet Server
Telnet upgrades, aggregation of log
files (not recommended).
files (not recommended).
25
TCP
Out
Any
SMTP to send email.
25
TCP
In
AsyncOS IPs
SMTP to receive bounced email or if
injecting email from outside firewall.
injecting email from outside firewall.
80
HTTP
In
AsyncOS IPs
HTTP access to the GUI for system
monitoring.
monitoring.
80
HTTP
Out
downloads.ironport.com
Service updates, except for AsyncOS
upgrades and McAfee definitions.
upgrades and McAfee definitions.
80
HTTP
Out
updates.ironport.com
AsyncOS upgrades and McAfee
Anti-Virus definitions.
Anti-Virus definitions.