day 1-24

Configure an IP address on an interface

• int g0/1

• ip address 192.168.1.254 255.255.255.0

• Desc ## to Sw1 ##

• No Shutdown

Configure a Hostname of R1

• en

• conf t

  • hostname R1

View the IP address configured

• do show ip int br

Configure a static ip route

• en

• conf t

• ip route 192.168.12.1 255.255.255.0 192.168.12.2

IP route is configured in ____
but ip address is configured in

• ip route → Global Config

• ip addr → on the interface

View the routing table

Do show IP route

when troubleshooting ip routes not happening

• do show ip int br

• do sh ip route

• do show running-config | include ip route

When subnetting it

• starts at 0

  • so /25 broadcast is 127, not 128

Configure an Access switchport

• switchport mode access

• switchport access vlan #

Troubleshoot VLAN

Do show vlan brief

Configure one interface on R1 for each VLAN.

Make sure the IP addresses are the gateway address you configured on the PCs.

• enable

• conf t

• int g0/0

• ip address 10.0.0.62 255.255.255.192

• no shutdown

  • do sh ip int br

Configure SW1's interfaces in the proper VLANs.

Remember the interfaces that connect to R1!

• enable

• conf t

• int range f0/1-3

• switchport mode access

• switchport access vlan 10

Name a VLAN

• Vlan #

• Name ____

Configure the switch interfaces connected to PCs as access ports in the correct VLAN

• int range f0/1-2

• sw mode access

• switchport access vlan #

• do show vlan brief

Configure the connection between SW1 and SW2 as a trunk, allowing only the necessary VLANs.

• SW1

• int g0/1

• switchport mode trunk

• switchport trunk allowed vlan 10,30

• sw trunk native vlan 1001

• do show vlan brief

View trunk

show interfaces trunk

Configure the connection between SW2 and R1 using 'router on a stick'.

Assign the last usable address of each subnet to R1's subinterfaces.

• SW2

• int g0/2

• sw mode trunk

• sw trunk allowed vlan 10,20,30

• sw trunk native vlan 1001

• R1

• Int g0/0

• no shutdown

• int g0/0.10

• Encapsulation dot1q 10 → 10 is the vlan number

• ip address 10.0.0.62 255.255.255.192

reset an interface to it’s default config

• default interface g0/2

Configure SVIs on SW2, one for each VLAN.

• SW2

• Do show vlan brief → make sure Vlan’s exist

• interface vlan 10 → ip address 10.0.0.62 255.255.255.192

• interface vlan 20 → 10.0.0.126 255.255.255.192

• interface vlan 30 → 10.0.0.190 255.255.255.192

• Do show ip interface brief → make sure they are all Up/Up

Configure VTP mode

• VTP domain {name}

• VTP mode ?

  • Do show VTP status

troubleshoot spanning-tree

• show spanning-tree

Configure SW1 as the primary root for VLAN1 and the secondary root for VLAN2.

Configure SW2 and the primary root for VLAN2 and the secondary root for VLAN1.

What is the STP role/state of each port on each switch now?

• SW1

• spanning-tree vlan 1 root primary

• spanning-tree vlan 2 root secondary

• SW2

• spanning-tree vlan 1 root secondary

• spanning-tree vlan 2 root primary

• Show spanning-tree and look at it on per vlan basis

Configure PortFast and BPDU Guard on the F0/3 interfaces of SW3/SW4

• int f0/3

• spanning-tree portfast

  • spanning-tree bpduguard enable

Configure Layer 2 EtherChannel between ASW1 and DSW1 using LACP.

Configure it as a trunk.

• ASW1

• Show spanning-tree

• int range g0/1-2

• channel-group 1 mode active

→

• int p0/1

• switchport mode trunk

• show etherchannel summary

When configuring port channels!

Don’t forget to configure the → int port-channel 1

• sw mode trunk

view etherchannel

• show etherchannel summary

Configure Floating Static Routes

• ip route 192.168.12.0 255.255.255.0 192.168.10.1 111

Configure Loopback interface

int loopback #

EIGRP config

• router eigrp #

• no auto-summary

• passive-interface g2/0

• network 10.0.0.0

  • network 172.16.0.0 0.0.0.15

View EIGRP

• show ip protocols

Configure router ID in EIGRP

• eigrp router-id