Reference Guide
Port Number Protocol Port Type Maximum
Encryption Level
Direction Usage
139 NetBIOS TCP None In/Out Remote Software
Update (for
Windows operating
systems)
161 SNMP UDP None In/Out SNMP query
management
443* Proprietary/
WSMAN
TCP None In/Out iDRAC/OMSA
communication
623* RMCP UDP None In/Out IPMI access through
LAN
1433 Proprietary TCP None In/Out Optional remote SQL
server access
3389 RDP TCP 128 - bit SSL In/Out Contextual
application launch—
Remote desktop to
Windows terminal
services
6389 Proprietary TCP None In/out EMC storage
discovery and
inventory. Enables
communication
between a host
system (through
NaviCLI/NaviSec CLI
or Navisphere host
agent) and a
Navisphere Array
Agent on a Storage
system
* — If ports 443 and 623 are changed in iDRAC, ensure that you change these ports in the OME discovery wizard as well, so that OME
can communicate with iDRAC on the new ports.
Dell Chassis Management Controller
Table 3. Supported Protocols and Ports
Port Number Protocols Port Type Maximum
Encryption Level
Direction Usage Congurable
20 FTP TCP None Out FTP data client No
21 FTP TCP None Out FTP command client No
22 SSH TCP 128-bit In SSH server Yes
23 Telnet TCP None In Telnet server Yes
25 SMTP TCP None Out SMTP client No
Ports 9