SSH

This lab configures SSH access on a Cisco router so that PC0 (192.168.1.0/24 network) can securely connect using the username ADMIN and password ADMIN123.

Topology:- Router0 (Cisco 2911) ↔ PC0 (192.168.1.0/24)

Router Configuration (Router0 CLI);

enable configure terminal

Set hostnamehostname KIKO

Set enable secret password enable secret 12345

Configure local user for SSH login username ADMIN secret ADMIN123

Configure domain name (required for SSH) ip domain-name cisco.local

Generate RSA keys for SSH crypto key generate rsa 1024 # choose key size

Configure VTY lines for SSH only line vty 0 4 transport input ssh login local

Assign IP to interface interface gig0/0 ip address 192.168.1.1 255.255.255.0 no shutdown

exit write memory

! PC Configuration (PC0) Go to Desktop > IP Configuration IP Address: 192.168.1.2 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.1.1

! Open Command Prompt and test: ping 192.168.1.1 ssh -l ADMIN 192.168.1.1 → Enter password: ADMIN123

Outcomes:-

1.Secure remote login to Router0 from PC0 via SSH. 2.Encrypted authentication instead of plaintext (Telnet). 3.Successful ping and SSH connectivity between router and PC.

Learnings:-

1.How to configure SSH on Cisco routers. 2.Importance of RSA key generation for encryption. 3.Difference between Telnet vs SSH (secure communication). 4.Basic network device management using command line.

Verification Commands:-

show ip int brief → to confirm IP assignment show running-config → to verify SSH setup show ssh → to check SSH sessions