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Your first configuration.

A practical guide to the terminal, saved labs, and solution feedback.

Montréal, Québec, CanadaUpdated

Start small. See what changes.

Start your first lab

  • Create an account, sign in, and open Challenges.
  • Choose “Name your first switch” and select Start or resume lab.
  • Select SW1 before typing a command.

Try a configuration

For the introductory challenge, name the switch AccessSW. Enter one command at a time, then choose Check solution.

configure terminal
hostname AccessSW
end
show running-config

Supported commands

VLAN IDs range from 1 to 4094. Supported interfaces are FastEthernet0/1 through FastEthernet0/24; fa0/N is also accepted. Create a VLAN before assigning a port to it. Use exit to leave a VLAN or interface context and end to return to EXEC mode.

help  |  ?
enable
show running-config
show vlan brief
configure terminal  |  conf t
hostname NAME
vlan ID
name NAME
interface FastEthernet0/N
switchport mode access
switchport access vlan ID
exit  |  end

Layer 3 switches and routers

Routing exercises practice saved IPv4 configuration. Routers have GigabitEthernet0/0–3. Layer 3 switches have GigabitEthernet0/1–24, FastEthernet0/1–24, VLAN interfaces, and the ip routing setting. Create a VLAN before its VLAN interface; use no switchport before assigning an IPv4 address to a physical switch port. Interface masks support /1–/30 and require host addresses. Static routes support /0–/32, one next hop per destination, distances 1–255, and at most 64 entries. The next hop must be on a configured local subnet. These checks do not forward packets or simulate dynamic routing, recursive next hops, failover, or real equipment.

interface GigabitEthernet0/N
interface vlan ID
no switchport
ip address ADDRESS MASK
no ip address
shutdown | no shutdown
ip routing | no ip routing
ip route NETWORK MASK NEXT-HOP [DISTANCE]
no ip route NETWORK MASK NEXT-HOP [DISTANCE]
show ip interface brief
show ip route

Save, resume, and reset

Accepted configuration changes are saved to your account. Open the same challenge and start or resume its lab to continue. Reset configuration restores that lab’s starting configuration; it does not remove completion or points you already earned. A completed challenge awards points once.