Lab - 17-WAN Configuration

7/30/2019 Lab - 17-WAN Configuration

1/12

www.asghars.blogspot.com 1

Lab - 17 - Routing Protocols & Configuration

http://www.4shared.com/rar/6O3LuFEj/Lab-17-WAN_Configuration.html

1) Configure the topology2) Configure Point-to-Point WAN / Lease Line3) Configuring Internet Access Routers4) Internet Access Router Verification

1. Configure the topology

Design and configure the topology as shown below:

i. Router R1
http://www.4shared.com/rar/6O3LuFEj/Lab-17-WAN_Configuration.htmlhttp://www.4shared.com/rar/6O3LuFEj/Lab-17-WAN_Configuration.htmlhttp://www.4shared.com/rar/6O3LuFEj/Lab-17-WAN_Configuration.html


2/12


ii. Router R2

2. Configure Point-to-Point WAN / Lease Line

i. Configure HDLC

In LAN IOS by default uses the Ethernet as Data Link (L2) protocol, so no Layer 2 commands are required.Similarly, serial interfaces use HDLC typically need no specific Layer 1 or 2 configuration commands. IOSdefaults to use HDLC as the data link protocol, so there are no required commands that relate to Layer2.

Router R1:


3/12


Router R2:

ii. Configure PPP

To migrate from a working HDLC link to a working PPP link, the only command needed is anencapsulation ppp command on each of the two routers serial int erfaces.

Router R1:


4/12


Router R2:

3. Configuring Internet Access Routers

Internet access routers built specifically for consumer ship from the factory with DHCP client servicesenabled on the Internet-facing interface, DHCP server functions enabled on the local interface, and PATfunctions enabled.


5/12


Enterprise routers, which have many features and may not necessarily be used as Internet accessrouters, ship from the factory without these features enabled by default.

i. Configure the Topology

Design and modify the topology as shown below:

a. NIO Ethernet of LAN cloud is configured as VMNet3, while ISP cloud is configured with loopback.This will act as ISP providing Internet connection.

b. Enable Internet connection sharing on your PC.


6/12


c. Disable DHCP on VMNet3 so that client can pick IP from our DHCP pool.


7/12


d. Configure R1

The interface fa1/0 is the Internet-facing interface; it will acquire its IP address from DHCP.

Configure R1 for SDM connection.

ii. Install and Access SDM

To access the router R1 through SDM, in SDM Launcher enter the IP address 10.1.129.1 (routersloopback) and click Launch button.


8/12


iii. Configure DHCP and PAT

a. To configure the DHCP client feature on the Internet-facing interface (fa1/0) and, the PATfeature. From the SDM Home page click Configure Interfaces and Connections

b. On the Create Connection tab, choose the Ethernet (PPPoE or Unencapsulated Routing) radiobutton and click the Create New Connection button near the bottom of the tab.


9/12


c. On SDM Ethernet Wizard just click Next.d. On next screen check Enable PPP over Ethernet (PPPoE) encapsulation.

As you can see near the top of figure wizard picked a fa1/0. The router used in this example hasthree LAN interfaces, two of which already have an IP addresses assigned. The wizard picked theonly LAN interface that did not already have an IP address, namely fa1/0, on which it will enablethe DHCP client function. Click Next.

e. On IP Address page select Dynamic (DHCP Client). Click Next.

f. Skip the Authentication page.g. On Advanced options page select Port Address Translation. Select the fa2/0 from the LAN

Interface to Be Translated drop-down box (this lists the inside interface), which means that thelisted interface is connected to the local LAN.


10/12


h. Click Next to move to the Summary page. Click Finish. SDM builds the configuration and loads itinto the routers running -config file. To save the configuration, click the save button near the topof the SDM home page to make the router do a copy running-config startup-config command tosave the configuration.

iv. Plan for DHCP Services

Plan the subset of the private IP network on the local LAN that you intend to allow to be assignedusing DHCP. Find the DNS server IP addresses learned by the router using DHCP client services, alsofind the domain name.


11/12


Private IP address range reserved: 192.168.1.101 192.168.1.254. In our example we dont haveconfigured DNS and domain name so let s skip it.

v. Configure DHCP Server

a. In SDM click Configure Additional Tasks.b. Select the DHCP Pools option on the left and then click the Add button to open the Add DHCP

Pool dialog box.

c. Fill the dialog fields as shown below:

d. Select Save from toolbar to make it permanent.


12/12


Whew! We are done with configuring an Internet access router.

4. Internet Access Router Verification

i. Check can we open a website. If a web page opens, that is a good indication that the access routerconfiguration worked. If not, go to next step.

ii. Use the ipconfig /all or ifconfig command to find out if the PC learned an IP address, mask, defaultgateway, and DNS IP addresses as configured in the DHCP server configuration on the router.

iii. Check the cabling between the router and the local LAN, and between the router and the cab le orDSL modem. Then check the SDM configuration to ensure that the inside interface per the PATconfiguration is the interface connected to the local LAN, and the outside interface per the PATconfiguration is connected to the DSL/cable modem.

Documents

Lab - 17-WAN Configuration