wiki:ipv6v4config

Version 14 (modified by admin, 8 years ago) ( diff )

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Device Configuration

Now you have six inter connected devices. All those devices have no confurations in them and you have to configure them.

Remote Access

When you are working in the Virtualbox interface you can't copy and paste commands in to that interface. You might have experienced this already. What you can do is you can remote log in to your campuslan VM.

Windows

  • Download and run ​Putty
  • type your campuslan VM's IP address in the hostname text box. set the port as 22
  • Click open and You will ask the username and Password of your vm. Provide them and You will be able to remote login to your linux machine

Mac

  • Open a terminal
  • Type ssh learn@<Your campuslan VM's IP address>
  • Give password and you will have a remote login to your linux machine

Log in to the the devices

In dynagen topology script you have to give a name to each device and there is a feature to assign a port to the console port of a particular device. Following are the device name and the console port number of your network setup.

Device Name Console Port Number
AccessRt2100
CampusCore2200
FacACore2300
FacBCore2400
FacASw2500
FacBSw2600

You can use this port to log in to the device's console port. Use the following code 

telnet localhost <console port number>

Now you have log in to your device. You can start configuring the device. After the configuration when you want to go back to host press cntl + } and you will get the following prompt. 

telnet>

Type Quit to exit from telnet.

Initial Configurations

Before configure the devices for the network setup. Let's configure some initial settings in the router. If your router is boot up when you logged in you will be prompted to the following line. 

Would you like to enter the initial configuration dialog? [yes/no]:

Type no (Might have to press the Enter key again) to go to the user mode of the router. Prompt will look as following. 

Router>

In the user mode of the router give the command enable to go the privileged mode. Prompt will change to following 

Router#

To add configurations you have to go configuration mode. Type config terminal. Note the prompt change. 

Router(config)#

You can now start making configurations.

  • First thing you have to add is the hostname of the device. Hostname is the device's identification. In this Lab device name is the same as host name. (Eg. CampusCore switch's hostname is CampusCore). Use the following command 
    hostname <device name>

You will see your prompt change from Router to the hostname you add.

  • Then let's give a enable secret. Which is a password you set when you go to the privileged mode from the user mode. We will use the class password as the enable secret 
    enable secret <class password>
  • Next you can add a banner to your device. This will display every time you log in to the device 
    banner motd @ Unauthorized Access is Prohibited! @
  • Then lets's configure the line console which are the console port settings
    • Go to line console config mode 
      line console 0
    • Enable login authentication. Make sure not to save or exit the router after this command without executing the next command. 
      login
    • Set the password 
      password <class password>
  • Finally let's enable ssh (version 2) in the device. Type exit to go back to previous mode (config mode) from line console config mode
    • Configure a domain name. Use learn.ac.lk for this lab. 
      ip domain name learn.ac.lk
    • Create a ssh user with a password. In here we will use the username admin with the class pasword 
      username admin secret <class password>
    • Create a certificate which will use for encryption 
      crypto key generate rsa
    • Give the size of key as 768 (minimum size needed to activate ssh version 2)
    • Then Configure the line vty 
      line vty 0 4
login local
transport input ssh

Apply these settings in all six devices

Note : Hostname is different in each device

Network Configurations

See the following diagram to find the IPv4 address in devices

https://ws.learn.ac.lk/raw-attachment/wiki/ipv6v4config/IPv4.jpg

You can refer the following table for assign Interface IP's.

VLAN

VLAN Name

Device Name

VLAN Interface IP

2

Core

CampusCore

10.0.2.1/24

FacACore

10.0.2.2/24

FacBCore

10.0.2.3/24

10

FacA

FacACore

10.0.10.254/24

FacASw

no interface IP

20

FacB

FacBCore

10.0.20.254/24

FacBSw

no interface IP

255

Router Connection/Public IP

CampusCore

10.0.255.253/24

Refer the following table for the interface's switchport mode configuration

Device Name

Interface

Mode

CampusCore

fast ethernet 1/15

Access VLAN 255

fast ethernet 1/0

Trunk

fast ethernet 1/1

Trunk

FacACore

fast ethernet 1/15

Trunk

fast ethernet 1/0

Trunk

FacBCore

fast ethernet 1/15

Trunk

fast ethernet 1/0

Trunk

FacASw

fast ethernet 1/15

Trunk

fast ethernet 1/0

Access VLAN 10

FacBSw

fast ethernet 1/15

Trunk

fast ethernet 1/0

Access VLAN 20

Core Network Layer

Let's start Configuring the connectivity between core network (CampusCore, FacACore and FacBCore). We will start from CampusCore.

  • Login to CampusCore device. Give your console port password (class password)
  • Go to config mode from user mode. Give your enable password (class password)
  • Core network runs on VLAN 2. Create VLAN 2 and name it Core 
    CampusCore(config)# vlan 2
CampusCore(config-vlan)# name Core
CampusCore(config-vlan)# exit
  • Then assign the IP Address to the VLAN interface. Get the IP from the table 
    CampusCore(config)#interface vlan 2
CampusCore(config-if)# ip address 10.0.2.1 255.255.255.0 
CampusCore(config-if)# exit
  • Finally configure fast ethernet interfaces switchport modes. You can find then from the table
    • Fisrt make the interface a trunk port. This is for the FacACore link 
      CampusCore(config)#interface FastEthernet 1/0
CampusCore(config-if)#switchport mode trunk
    • Define the encapsulation 
      CampusCore(config-if)#switchport trunk encapsulation dot1q
    • Give the Description of the interface 
      CampusCore(config-if)#description Core link to FacACore
CampusCore(config-if)#exit
    • Follow the same procedure for FacBCore link 
      CampusCore(config)#interface FastEthernet 1/1
CampusCore(config-if)#switchport mode trunk
CampusCore(config-if)#switchport trunk encapsulation dot1q 
CampusCore(config-if)#description Core link to FacACore
CampusCore(config-if)#exit
  • You have successfully configured the CampusCore device for you core networks connectivity. Let's move on to FacACore device. 
    FacACore(config)# vlan 2
FacACore(config-vlan)# name Core
FacACore(config-vlan)# exit
FacACore(config)#interface vlan 2
FacACore(config-if)# ip address 10.0.2.2 255.255.255.0 
FacACore(config-if)# exit
FacACore(config)#interface FastEthernet 1/15
FacACore(config-if)#switchport mode trunk
FacACore(config-if)#switchport trunk encapsulation dot1q 
FacACore(config-if)#description Core link to CampusCore
FacACore(config-if)#exit
  • Now let's configure FacBCore 
    FacBCore(config)# vlan 2
FacBCore(config-vlan)# name Core
FacBCore(config-vlan)# exit
FacBCore(config)#interface vlan 2
FacBCore(config-if)# ip address 10.0.2.3 255.255.255.0 
FacBCore(config-if)# exit
FacBCore(config)#interface FastEthernet 1/15
FacBCore(config-if)#switchport mode trunk
FacBCore(config-if)#switchport trunk encapsulation dot1q 
FacBCore(config-if)#description Core link to CampusCore
FacBCore(config-if)#exit
  • Finally Verify the connectivity
    • Go to FacACore device
    • Go to privileged mode and ping CampusCore and FacBCore 
      ping 10.0.2.1
ping 10.0.2.3
    • You should get a positive reply with "!!"

Distribution Network Layer

Let's Start Configuring the distribution layer of your campus LAN. Here you will have to configure both Layer 3 switches (FacACore and FacBCore) and Layer 2 Switches (FacASw and FacBSw). Let's start from Layer 3 devices.

  • Login to FacACore device
  • Go to config mode from privileged mode
  • FacACore is the Core device in Faculty A and It can have different departments. In this scenario department 1 is in faculty A and It's VLAN is VLAN10. Create VLAN 10 and Name it Dept1 
    FacACore(config)# vlan 10
FacACore(config-vlan)# name Dept1
FacACore(config-vlan)# exit
  • Then assign the IP Address to the VLAN interface. Get the IP from the table 
    FacACore(config)#interface vlan 10
FacACore(config-if)# ip address 10.0.10.254 255.255.255.0 
FacACore(config-if)# exit
  • Next configure fast ethernet interfaces switchport modes. You can find then from the table
    • Fisrt make the interface a trunk port. 
      FacACore(config)#interface FastEthernet 1/0
FacACore(config-if)#switchport mode trunk
    • Define the encapsulation 
      FacACore(config-if)#switchport trunk encapsulation dot1q
    • Give the Description of the interface 
      FacACore(config-if)#description link to FacASw
FacACore(config-if)#exit
  • Follow the same procedure for FacBCore device. VLAN 20 name is dept 2. 
    FacBCore(config)# vlan 20
FacBCore(config-vlan)# name Dept2
FacBCore(config-vlan)# exit
FacBCore(config)#interface vlan 20
FacBCore(config-if)# ip address 10.0.20.254 255.255.255.0 
FacBCore(config-if)# exit
FacBCore(config)#interface FastEthernet 1/0
FacBCore(config-if)#switchport mode trunk
FacBCore(config-if)#switchport trunk encapsulation dot1q 
FacBCore(config-if)#description link to FacBSw
FacBCore(config-if)#exit
  • Now the Core devices are done, Let's Configure Layer 2 devices. Login to FacASw
  • Go to config mode
  • Create Vlan 10 and Give a Name 
    FacASw(config)# vlan 10
FacASw(config-vlan)# name Dept1
FacASw(config-vlan)# exit
  • Next configure fast ethernet interface which connects to the Core device and give a description 
    FacASw(config)#interface FastEthernet 1/15
FacASw(config-if)#switchport mode trunk
FacASw(config-if)#switchport trunk encapsulation dot1q 
FacASw(config-if)#description link to FacACore
FacASw(config-if)#exit
  • Configure fast ethernet interface, which connects to the User PC to an access port of VLAN 10 and give a description 
    FacASw(config-if)#switchport mode access
FacASw(config-if)#switchport access vlan 10
FacASw(config-if)#description link to Dept1PC
FacASw(config-if)#exit
  • Follow the same steps for FacBSw 
    FacBSw(config)# vlan 20
FacBSw(config-vlan)# name Dept2
FacBSw(config-vlan)# exit
FacBSw(config)#interface FastEthernet 1/15
FacBSw(config-if)#switchport mode trunk
FacBSw(config-if)#switchport trunk encapsulation dot1q 
FacBSw(config-if)#description link to FacBCore
FacBSw(config-if)#exit
FacBSw(config-if)#switchport mode access
FacBSw(config-if)#switchport access vlan 20
FacBSw(config-if)#description link to Dept2PC
FacBSw(config-if)#exit
  • You have configured your distribution layer. Check and verify the connectivity
    • Go to Dept1PC and try ping the gateway (VLAN 10 Interface IP of FacACore) 
      ping 10.0.10.254
    • You should get a reply
    • Try the same in Dept2PC

Connecting LAN to the Router

Your Campus LAN is connecting to the outside through a border router. Your CampusCore switch connects to this border router. In this link router's fast ethernet interface IP connects with the Core switch's vlan interface IP. Let's start configuring this link starting from the CampusCore.

  • Login to CampusCore switch and switch to config mode
  • Create VLAN 255 and name it Public 
    CampusCore(config)# vlan 255
CampusCore(config-vlan)# name Public
CampusCore(config-vlan)# exit
  • Then assign the IP Address to the VLAN interface. Get the IP from the table. In the real situation this VLAN could be a public IP range which is assign to your Institute. In this Lab we are using a private IP block. 
    CampusCore(config)#interface vlan 255
CampusCore(config-if)# ip address 10.0.255.254 255.255.255.0 
CampusCore(config-if)# exit
  • Next configure fast ethernet interface which connects to the Core device and give a description.You can find then from the table 
    CampusCore(config)#interface FastEthernet 1/15
CampusCore(config-if)#switchport mode access
CampusCore(config-if)#switchport access vlan 255
CampusCore(config-if)#description link to Border Router
CampusCore(config-if)#exit
  • Now you have done CampusCore configuration. Let's start routers Configuration.
  • Login to AccessRt Router and switch to config mode
  • Router's IP allocation is as follows. You can get your Router's IP address from here
Interface Name IP Address
Fast Ethernet 0/0 10.0.255.254/24
Fast Ethernet 0/1 <Your Routers WAN IP>
  • Let's configure the LAN port (fa 0/0) 
    AccessRt(config)#interface fastEthernet 0/0
AccessRt(config-if)#ip address 10.0.255.254 255.255.255.0
AccessRt(config-if)#description LAN Port connects to CampusCore
AccessRt(config-if)#no shutdown
AccessRt(config-if)#exit
  • Configure the WAN port (fa 0/1) 
    AccessRt(config)#interface fastEthernet 0/1
AccessRt(config-if)#ip address x.x.x.x 255.255.255.0
AccessRt(config-if)#description WAN Port Bridged with campuslan host
AccessRt(config-if)#no shutdown
AccessRt(config-if)#exit
  • You have successfully finished connecting CampusCore to the AccessRt router. Let's verify the connectivity using the ping command.
  • Go to AccessRt and ping to CampusCore switch's VLAN 255 Interface IP 
    ping 10.0.255.253
  • Now Check the routers connectivity in WAN port. Ping to the WAN Gateway 
    ping 192.248.6.254

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