Repository with all the labs and necessary screenshots: GitHub — AdithyakrishnaV/CCNA_200–301: CCNA 200–301 Practical LABS. CCNA (Cisco Certified Network… CCNA 200–301 Practical LABS. CCNA (Cisco Certified Network Associate) is an information technology (IT) certification… github.com Configure the hostname : Router>en Router #conf t Router (config) #hostname R1 R1 (config)# en is the shortcut for enable command. “ennable” is used to enter Privileged EXEC mode conf t is the shortcut for configure terminal command. Used to enter the global configuration mode delete or remove Just put a no in front, it is same across all devices. R1(config)#no interface g0 /0.20 show ip interface Checks the status of the interfaces R1(config) #do show ip interface brief Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 unassigned YES unset administratively down down GigabitEthernet0/1 unassigned ...