The Lenovo Chassis
Management Module 2 modules use
a variety of TCP/IP ports for communication. This topic lists these
ports and indicates the ones that are fixed or can be changed by an
administrator. You need to make sure that your network allows communications
through these ports for the Lenovo Chassis
Management Module 2 modules to
function and communicate correctly.
Note: The CMM HTTP and HTTPS ports are open at all times.
Port behavior is determined by the CMM HTTPS port setting, which can
be affected by the CMM chassis security policy setting:
- When the CMM HTTPS port is enabled, the HTTP port (port 80) remains
open and redirects to the HTTPS port (port 443). When the chassis
security policy is set to secure, the CMM HTTPS port is automatically
enabled and its setting cannot be changed.
- When the CMM HTTPS port is disabled, the HTTPS port (port 443)
remains open and redirects to the HTTP port (port 80).
Table 1. User configurable Lenovo Flex System
Enterprise Chassis ports. The parts listing table is a three-column
table that TCP/IP ports for the Lenovo Flex System
Enterprise Chassis Types 8721, 8724, and 8725 option.
Column 1 identifies the port name. Column 2 gives the port number.
Column 3 provides a description.
| Port name |
Port number |
Description |
|---|
| CIM/XML HTTPS |
5989 (default) |
CIM/XML HTTPS used by management applications |
| FTP |
21 (default) |
FTP |
| FTP Data |
20 (default) |
FTP Data |
| http |
80 (default) |
Web server HTTP connection - TCP |
| https |
443 (default) |
SSL connection for HTTP-TCP |
| Secure TCP Command Mode |
6091 (default) |
Secure TCP Command Mode used by management
applications |
| SLP |
427 (default) |
Service location protocol - UDP |
| SNMP agent |
161 (default) |
SNMP get/set commands - UDP |
| SNMP traps |
162 (default) |
SNMP traps |
| SSH |
22 (default) |
Secure Shell (SSH) command-line interface -
TCP |
| TCP Command Mode |
6090 (default) |
TCP Command Mode |
| telnet |
23 (default) |
Telnet command-line interface connection -TCP |
| TFTP |
69 (default) |
TFTP |
Note: The LDAP server port (port 389) is used only
with the STARTTLS protocol extension to provide an equivalent to LDAPS
port 636. Unsecure access to the LDAP server port is disabled: if
a secure SSL connection is not established, connection to port 389
is refused. Port 389 is the default port for the CMM internal interface.
Port 636 the default port for the CMM external interface.
Table 2. Fixed Lenovo Flex System
Enterprise Chassis ports. The parts listing table is a two-column
table that TCP/IP ports for the Lenovo Flex System
Enterprise Chassis Types 8721, 8724, and 8725 option.
Column 1 identifies the port number. Column 2 provides a description.
| Port number |
Description |
|---|
| 25 |
E-mail alerts - TCP |
| 53 |
DNS resolver - UDP |
| 67 and 68 |
DHCP - UDP |
| 123 |
NTP |
| 389 |
LDAP server port |
| 547 |
DHCP (IPv6) - UDP |
| 623 |
RMCP (Remote Management and Control Protocol) |
| 636 |
LDAPS (secure LDAP) |
| 830 |
NETCONF (Network Configuration Protocol) Note: If
an I/O module supports the NETCONF protocol, port 830 is open by default.
|