ccna-1

Commands presented in the Cisco CCNA Routing and Switching 1 certification on Netacad.


basic commands


informations

Router> enable
Router> disable
Router> configure terminal

Router> exit 
Router> end
Router> ctrl + z

Router> show mac address-table

Router> show ip arp
Router> show arp
Router> show cdp neighbors

Router> show protocols
Router> show version

configuration

Router> hostname SW-floor-1
Router> no hostname

Router> ip default-gateway
Router> ipv6 unicast-routing

Router> erase startup-config
Router> reload
Router> copy running-config startup-config

# configuration courante (volatile)
Router> show running-config

# configuration au démarrage (non volatile)
Router> show startup-config

layer 2 information


Router> show interfaces brief
Router> show interfaces

Router> show interface FastEthernet 0/1 brief
Router> show interface FastEthernet 0/1

layer 3 information


Router> show ip interfaces brief
Router> show ip interfaces

Router> show ipv6 interfaces brief
Router> show ipv6 interfaces

Router> show ip interface FastEthernet 0/1 brief
Router> show ip interface FastEthernet 0/1

Router> show ipv6 interface FastEthernet 0/1 brief
Router> show ipv6 interface FastEthernet 0/1

routing tables


Router> show ip route

Router> show ipv6 route

configure interfaces


# types d'interfaces
Router> line console 0
Router> line vty 0 15
Router> interface vlan 1

# IPv4
Router> interface gigabitethernet 0/0
Router> description my description
Router> ip address 192.168.1.12 255.255.255.0
Router> no shutdown

# IPv6
Router> interface gigabitethernet 0/0
Router> ipv6 address 2001:db8:acad:1::1/64
Router> ipv6 address fe80::1 link-local
Router> no shutdown

ssh access


Router> ip domain-name test.com
Router> crypto key generate rsa general-keys modulus 1024
Router> username bob secret my_pass
Router> line vty 0 15
Router> login local
Router> transport input ssh
Router> exit

security


# accès console
Router> line console 0
Router> password my_pass
Router> login

# accès privilégié
Router> enable secret my_pass

# accès distant (SSH, Telnet)
Router> line console vty 0 15
Router> password my_pass
Router> login

# message of the day
Router> service password-encryption
Router> banner motd "Accés reglementé"

# limite connexion
Router> auto secure
Router> service passwords min-length 10
Router> login block-for 120 attempts 3 within 60

# inactivité
Router> line vty 0 15
Router> exec-timeout 10

debug


Router> ping 8.8.8.8
Router> ping ipv6 8.8.8.8
Router> traceroute 8.8.8.8
Router> debug ip icmp
Router> undebug ip icmp
Router> terminal monitor