Basic

Basic Configuration

Hostname <hostname>
Service password-encryption
Enable secret <secret>
Username <username> secret <secret>
AAA new-model
login block-for 120 attempts 2 within 120 !Block for 2 minutes, after 2 failed attempts in 2 minute period

SSH

Ip domain-name <DomainName>
Crypto key generate rsa modulus 4096
Ip SSH version 2
Ip SSH authentication-retries 2
Ip SSH time-out 60
Line VTY 0 15
Transport input SSH

Console

AAA authentication login default local
Line con 0
login authentication default
logging synchronous

Privilege levels

Enable secret level 2 <secret>
Privilege exec level 2 <command>

Default route

ip route 0.0.0.0 0.0.0.0 [<Next hop IP | <Exit interface>]
ipv6 route ::/0 [<Next hop IP> | <Exit interface>]

Plane

Control-Plane is something we call it as the heart of the process..... it is something handles that comes to the box.... if any traffic is destined or defined to the box/device... then it is handled by control plane....

Data Plane is something which has the forwarding information we can say that as forwarding plane.... which has the routing table and other access-rule information to define how that traffic to be handled.... on which interface it enter and how it goes out of the box.....

Management Plane: Whatever you do: editing/moniotoring/managing the device.... say SNMP/CLI/GUI are some functionalities we can say it as management plane... it is a sub-component of control plane we can say.... management plane can be controlled by control-plane