Scaling Networks Cheat Sheet Cheat sheet for CCNA4 - Scaling Networks
Description
Command
Set the console (interface 0) time out to 5 minutes
exec-timeout 5 0
Configure the router to encrypt all plain text passwords
service password-encryption
Configure an IP address and a subnet mask to an interface
ip address 192.168.1.2 255.255.255.252
Enable an interface on a switch
no shutdown
Configure RIP routing protocol
router rip
Configure RIPv2
version 2
Advertise the 192.168.1.0 network
network 192.168.1.0
Disabe auto summarization
no auto-summary
Show the current running configuration of the device
show running-config
Show information about the configured IPv4 protocols on the router
show ip protocols
Show routing table
show ip route
Display a brief summary of the current information for every configured interface
show ip interface brief
Display information about directly connected Cisco devices
show cdp neighbors
Displays any ports with security activated
show port-security
Displays all secure MAC addresses configured on all switch interfaces
show port-security address
Displays all MAC addresses
show mac-address-table
Description
Command
Verify VTP status
show vtp status
Set VTP mode client
vtp mode client
Configure VTP domain name
vtp domain CCNA
Set VTP password
vtp password cisco12345
Create VLAN
vlan 10
delete VLAN
no vlan 10
Assign name to VLAN
name SALES
Verify configured VLANs
show vlan brief
Set port to access mode
switchport mode access
Assign the port to a VLAN
switchport access vlan 30
Set port to trunk mode
switchport mode trunk
Allow VLANs to trunk
switchport trunk allowed vlan 10, 30
Assign subinterface to VLAN (routers)
encapsulation dot1q 10
Assign default gateway
ip default-gateway 10.1.1.1
Description
Command
Verify Spanning Tree
show spanning-tree
Verify Spanning Tree on VLAN
show spanning-tree vlan
Enter the spanning-tree cost
spanning-tree cost 25
Reset spanning-tree cost to default
no spanning-tree cost
Ensure lowest bridge priority method 1
spanning-tree VLAN 1 root primary
Ensure root bridge method 2
spanning-tree VLAN 1 priority 24576
Ensure alternate root bridge method 1
spanning-tree VLAN 1 root secondary
Configure portfast on switch port
spanning-tree portfast
Configure BPDU guard on interface
spanning-tree bpduguard enable
Configure Rapid PVST+ mode
spanning-tree mode rapid-pvst
Specify point-to-point link type
spanning-tree link-type point-to-point
Chapter4: EtherChannel and HSRP
Description
Command
Verify EtherChannel configuration
show interfaces port-channel 1
Verify EtherChannel different channels
show etherchannel summary
Verify role of the interface in Etherchannel
show interfaces f0/1 etherchannel
Verify EtherChannel port channels
show etherchannel port-channel
Select desired interface range
interface range f0/1-2
Create port channel interface
channel-group 1 mode active
Enter port channel interface
interface port-channel 1
Verify HSRP configuration
show standby brief
Configure HSRP to use version 2
standby version 2
Configure virtual IP that will be used by group
standby 10 ip 192.168.1.1
Configure priorty that will be used for group
standby 10 priority 100
Configure the router to preempt
stadby 10 preempt
Debug HSRP
debug standby packets
Debug HSRP
debug standby terse
Chapter5: Dynamic Routing Enkel theorie
Description
Command
Enable router configuration mode to eigrp and begin configuration process
router eigrp 1
Disable router configuration mode from eigrp
no router eigrp 1
Set router-id
eigrp router-id 1.1.1.1
Enable eigrp for the interfaces on a specific subnet
network 172.16.0.0
Enable eigrp for the interfaces on a specific subnet, but only allow allow some
network 192.168.10.8 0.0.0.3
Set interface to passive
passive-interface g0/0
Examine neighbors
show ip eigrp neighbors
Verifying eigrp active
show ip protocols
Examine routing table
show ip route
Adjust metric weight (waarschijnlijk niet nodig)
metric weights tos k1 k2 k3 k4 k5
Adjust bandwidth
interface s0/0/0 && bandwidth 64
Configure Link-local adress
ipv6 address fe80::1 link-local
Enable router configuration mode for ivp6
ipv6 router eigrp 2
Configure unicast-routing
ipv6 unicast-routing
Configure router-id
eigrp router-id 1.0.0.0 && no shutdown
Enable eigrp on an interface
ipv6 eigrp 2
Examine ipv6 eigrp neighbors
show ipv6 eigrp neighbors
Verify ipv6 eigrp active
show ipv6 protocols
Verify ipv6 routes active
show ipv6 route
Enable auto-summary
auto-summary
Propagate (ipv6) static route
redestribute static
Configure hello timers
ip hello-interval eigrp 1 50
Configure hold timers
ip hold-time eigrp 1 150
Set interface to passive
passive interface s0/0/0
Chapter7: EIGRP Tuning and Troubleshooting
Description
Command
Zit hierboven vanaf propagate
command
Chapter8: Single-Area OSPF
Description
Command
Enable configuration mode to ospf and begin configuration process
router ospf 10
Disable router configuration mode from ospf
no router ospf 10
Set router-id
router-id 1.1.1.1
Lookback interface as router ID
interface loopback 0 && ip address 1.1.1.1 255.255.255.255
Assigning interfaces to an ospf area
network 172.16.1.0 0.0.0.255 area 0
Configure passive interfaces
passive-interface g0/0
Adjust interface bandwidth
bandwidth 64
Manually set cost
ip ospf cost 15625
Set interface priority
ip ospf priority 150
Verify ospf neighbors
show ip ospf neighbor
Verify ospf settings
show ip protocols
Verify interface settings
show ip ospf interface brief
Description
Command
Multiarea ospf
network 10.1.1.1 0.0.0.0 area 1 && network 192.168.10.1 0.0.0.0 area 0
Chapter10: OSPF Tuning and Troubleshooting
Description
Command
Propogate a Default Static route
default-information originate
Hello/Hold interval
Zie eigrp