To start, it's essential to understand that "162" can refer to a few different things in the Cisco world. Most often, it's seen as a (like CIT-162), which is the foundation for a series of related hands-on labs. It can also refer to a page number in a lab companion book or a UDP port number (UDP 162) used by the Simple Network Management Protocol (SNMP) for traps.
: Configuring and enabling IPv4 and IPv6 addresses on router interfaces.
: Configuring the router for secure remote management. cisco+lab+162
Router# show interfaces gigabitethernet 0/0
enable secret $cisco! PRIV* (or similar strong password). Console Password: line con 0 password $cisco!!CON* login exit SSH and VTY Line Configuration: Create a local user: username SSHadmin secret 55Hadm!n2020 Generate Keys: crypto key generate rsa (1024-bit). Secure VTY: To start, it's essential to understand that "162"
Before typing commands, physical or virtual topologies must be established. In a typical Cisco Packet Tracer or physical environment, this lab uses a single router (e.g., Cisco 4221), a switch (e.g., Catalyst 2960), and at least one end-host PC. Initializing and Wiping the Devices
Ensure the trunk link between the switch and the router is properly configured with switchport mode trunk . : Configuring and enabling IPv4 and IPv6 addresses
interface gigabitEthernet 0/24 switchport mode trunk