summary of command cisco 2

8/11/2019 Summary of Command Cisco 2

1/13

mopgalicia2014

CHAPTER 2: BASIC SWITCHING CONCEPTS AND CONFIGURATION

To create a VLAN with the vlan_id of 99, and associate it to an interface, use the following commands:

S1(config)#vlan vlan_id

S1(config-vlan)#name vlan_name

S1(config-vlan)#exit

S1(config)#interfaceinterface_id

S1(config-if)#switchport access vlan vlan_id

To configure switch management interface, use the following commands:

S1(config)#interface vlan vlan_id

S1(config-if)#ip address ip_address subnet_mask

S1(config-if)#no shutdown

S1(config-if)#end

S1#copy running-config startup-config

To configure switch management interface, use the following commands:

S1(config)#ip default-gateway ip_address

S1(config)#end

To verify switch management interface, use the following commands:

S1#show ip interface brief


2/13

mopgalicia2014

To configure duplex, speed and mdix, use the following commands:

S1(config)#interface interface_id

S1(config-if)#duplex {half|full}

S1(config-if)#speed speed

S1(config-if)#mdix auto

S1(config-if)#end

S1#co runnin -confi startu -confi

Verifying commands:


3/13

mopgalicia2014

To configure ssh, use the following commands:

S1(config)#ip domain-name domain-name

S1(config)#crypto key generate rsa

S1(config)#username username secretpassword

S1(config-line)#line vty 0 15

S1(config-line)#transport input ssh

S1(config-line)#login local

S1(config-line)#exit

S1(config)#ip ssh version 2

S1(config)#exit

To verify ssh status and settings, use the following commands:

S1#show ip ssh

To enter range of ports, use the following commands:

S1(config)#interface range type module/first-number last-number

To configure dhcp snooping, use the following commands:

S1(config)#ip dhcp snooping

S1(config)#ip dhcp snooping vlan number

S1(config)#interfaceport

S1(config-line)#ip dhcp snooping trust

S1(config)#interfaceport

S1(config-line)#ip dhcp snooping limit rate number

S1(config-line)#exit


4/13


5/13

mopgalicia2014

CHAPTER 3: VLANS

To create a VLAN, use the following commands:

S1(config)#vlan vlan_id

S1(config-vlan)#name vlan_name

S1(config-vlan)#end

To assign ports to VLANs, use the following commands:


S1(config-if)#switchport mode access

S1(config-if)#switchport access vlan vlan_id

S1(config-if)#end

Show commands:


6/13

mopgalicia2014

CHAPTER 5: Inter-VLAN Routing

CHAPTER 6: Static Routing

To configure trunk, use the following commands:


S1(config-if)#switchport mode trunk

S1(config-if)#switchport trunk native vlan vlan_id

S1(config-if)#switchport trunk allowed vlan vlan_list

S1(config-if)#end

To configure router-on-a-stick inter-vlan routing, use the following commands:

S1(config)#interface interface_id subinterface_id

S1(config-subif)#encapsulation dot1q vlan_id

S1(config-subif)#ip address ip_address subnet_mask

S1(config-subif)#no shutdown

S1(config-subif)#end

To configure ipv4 static routing, use the following commands:

R1(config)#Ip route destination-network-address subnet-mask {ip-add|exit-int}

To configure ipv4 default routing, use the following commands:

R1(config)#Ip route 0.0.0.0 0.0.0.0{ip-add|exit-int}

To verify routing table, use the following commands:

R1 # show ip route


7/13

mopgalicia2014

CHAPTER 7: Routing Dynamically

To configure RIP, use the following commands:

R1(config)#router rip

R1(config-router)#network network-address

To configure RIPv2, use the following commands:


R1(config-router)#version-2

R1(config-router)#network network-address

To disable automatic summarization, use the following commands:


R1(config-router)#no auto-summary

To configure passive-interface, use the following commands:


R1(config-router)#passive-interface interface-id

To verify routing protocols, use the following commands:

R1#show ip protocols

To originate default information, use the following commands:


R1(config-router)#default-information originate


8/13

mopgalicia2014

CHAPTER 8: Single-Area OSPF

To configure ospf, assign router id, use the following commands:

R1(config)#router ospfprocess_id

R1(config-router)#router-id rid

R1(config-router)#network network-address wildcard-mask area area-id

To adjust the reference bandwidth, use the following commands:

R1(config)#router ospfprocess_id

R1(config-router)#auto-cost reference-bandwidth Mb/s

To adjust the interface bandwidth, use the following commands:

R1(config)#interface interface_id

R1(config-router)#bandwidth kb/s

To manually set the cost, use the following commands:


R1(config-router)#ip ospf cost value

Verifying commands:

R1# show ip ospf

R1# show ip ospf neighbor

R1# show ip ospf interface brief

R1# show i rotocols


9/13

mopgalicia2014

CHAPTER 9: ACL

To configure standard numbered ACL, use the following commands:

R1(config)#access-list access-list-number {deny|permit|remark} source wildcard-mask

R1(config)#interface interface-id

R1(config-if)#ip access-group access-list-number {in|out}

To configure named ACL, use the following commands:

R1(config)#ip access-list {standard|extended} name

R1(config-std-nacl)#{permit|deny|remark} source wildcard_mask


R1(config-if)#ip access-group name {in|out}

To configure standard ACL to a secure VTY port, use the following commands:

R1(config)#line vty 0 4

R1(config-line)#login local

R1(config-line)#transport input ssh

R1(config-line)#access-class access-list-number {in|out}

R1(config)#access-list access-list-number {deny|permit|remark} source wildcard-mask

Verifying commands:

R1# show access-lists


10/13

mopgalicia2014

CHAPTER 10: DHCP

To configure extended numbered ACL , use the following commands:

R1(config)#access-list access-list-number {deny|permit|remark} protocol source

wildcard-mask operator port


R1(config-if)#ip access-group name {in|out}

To configure DHCP, use the following commands:

R1(config)#ip dhcp excluded-address low_address high_address

R1(config)#ip dhcp poolpool_name

R1(dhcp-config)#network network-address subnet-mask

R1(dhcp-config)#default-router ip_address

R1(dhcp-config)#dns-server ip_address

R1(dhcp-config)#domain-name name

Verifying commands:

R1# show ip dhcp binding

R1# show ip dhcp server statistics

R1# show running-config | section dhcp

To assign ip helper-address, use the following commands:


R1(config-if)#ip helper-address ip_address

To configure router as DHCP client, use the following commands:


R1(dhcp-config)#ip address dhcp


11/13

mopgalicia2014

CHAPTER 11: NAT

To configure Static NAT, use the following commands:

Verifying commands:

R1# show ip nat translations

R1# show ip nat statistics


12/13

mopgalicia2014

To configure Dynamic NAT, use the following commands:

To configure PAT Pool, use the following commands:


13/13

summary of command cisco 2

Documents