Terminal Commands

Use the built-in terminal to configure devices with CLI commands.

Accessing the Terminal

Click on a device to select it
The terminal panel opens at the bottom
Type commands and press Enter

Command Modes

User Mode

Basic commands for viewing information:

show ip
show interfaces
ping 192.168.1.1

Privileged Mode

Enter with enable:

enable
show running-config

Configuration Mode

Enter with configure terminal:

configure terminal
hostname MyRouter

Interface Configuration

interface eth0
ip address 192.168.1.1 255.255.255.0
no shutdown
exit

Common Commands

Command	Description
`help`	Show available commands
`show ip`	Display IP configuration
`show interfaces`	List all interfaces
`show arp`	Display ARP table
`show mac-address-table`	Display MAC table (switches)
`show vlan`	Display VLAN configuration (switches)
`show spanning-tree`	Display STP status (switches)
`ping <ip>`	Test connectivity
`traceroute <ip>`	Trace packet path
`clear`	Clear terminal screen
`clear arp`	Clear ARP cache
`clear mac-address-table`	Clear MAC table (switches)

VLAN Commands (Switches)

Command	Description
`vlan <id>`	Create VLAN or enter VLAN config mode
`no vlan <id>`	Delete VLAN
`show vlan`	Display VLAN information
`switchport mode access`	Set port to access mode
`switchport mode trunk`	Set port to trunk mode
`switchport access vlan <id>`	Assign port to VLAN
`switchport trunk allowed vlan <ids>`	Set trunk allowed VLANs
`interface vlan <id>`	Configure SVI for inter-VLAN routing

Spanning Tree Commands (Switches)

Command	Description
`spanning-tree enable`	Enable STP
`spanning-tree disable`	Disable STP
`spanning-tree priority <value>`	Set bridge priority (0-61440)
`show spanning-tree`	Display STP status
`show stp interface`	Display per-port STP states
`spanning-tree cost <value>`	Set port cost (in interface mode)

TCP Connection Commands

Command	Description
`netstat`	Display all TCP connections
`netstat -l`	Display listening ports only
`netstat -a`	Display all connections (including listening)
`netstat -t`	Display TCP connections (same as default)
`telnet <ip> [port]`	Open TCP connection to remote host

Example: Starting a TCP Listener

# On a server, start listening on port 80
listen 80

Example: Connecting via Telnet

# Connect to a server on port 80
telnet 192.168.1.100 80

Example: Viewing Connections

# Show all connections
netstat -a

# Output:
Active Internet connections
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp    0      0 *:80                    *:*                     LISTEN
tcp    0      0 192.168.1.10:49152      192.168.1.100:80        ESTABLISHED

Tips

Use ? after a command for help
Tab completion is supported
Use exit to go back one mode level