Cisco Nexus 5000 Series - Configuring Tcp Ports

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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 1 Configuring TACACS+
Configuring TACACS+
Configuring TCP Ports
You can configure another TCP port for the TACACS+ servers if there are conflicts with another
application. By default, Nexus 5000 Series switches use port 49 for all TACACS+ requests.
To configure TCP ports, perform this task:
The following example shows how to configure TCP ports:
switch# configure terminal
switch(config)# tacacs-server host 10.10.1.1 port 2
switch(config)# exit
switch# show tacacs-server
switch# copy running-config startup-config
Configuring Periodic TACACS+ Server Monitoring
You can monitor the availability of TACACS+ servers. These parameters include the username and
password to use for the server and an idle timer. The idle timer specifies the interval in which a
TACACS+ server receives no requests before the Nexus 5000 Series switch sends out a test packet.You
can configure this option to test servers periodically, or you can run a one-time only test.
Note To protect network security, we recommend that you use a user name that is not the same as an existing
username in the TACACS+ database.
The test idle timer specifies the interval in which a TACACS+ server receives no requests before the
Nexus 5000 Series switch sends out a test packet.
Note The default idle timer value is 0 minutes. When the idle time interval is 0 minutes, periodic TACACS+
server monitoring is not performed.
To configure periodic TACACS+ server monitoring, perform this task:
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# tacacs-server host
{ipv4-address|ipv6-address|host-name} port
tcp-port
Specifies the TCP port to use for TACACS+
accounting messages.The default TCP port is 49.
The range is from 1 to 65535.
Step 3
switch(config)# exit
Exits configuration mode.
Step 4
switch# show tacacs-server
(Optional) Displays the TACACS+ server
configuration.
Step 5
switch# copy running-config startup-config
(Optional) Copies the running configuration to the
startup configuration.