User Guide

D-3
AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Appendix D Firewall Information
1024
and
higher
See information above for Port 21
(FTP.)
2222 CCS In & Out AsyncOS IPs Cluster Communication Service (for
Centralized Management).
6025 TCP Out AsyncOS IPs Cisco Spam Quarantine
7025 TCP In & Out AsyncOS IPs Pass policy, virus, and outbreak
quarantine data between Email
Security appliances and the Cisco
Content Security Management
appliance when this feature is
centralized.
32137 TCP Out As configured in Security
Services > File
Reputation and Analysis,
Advanced section, Cloud
Server Pool parameter.
Default port for access to cloud
services for obtaining file reputation.
See also port 443.
For file analysis services, see port 443.
Table D-1 Firewall Ports (continued)