NETWORK CONFIGURATION

TCP/IP CONFIGURATION

Dr. Zeeshan Bhatti

Lecture 1

TCP/IP configuration

2

FROM THE START MENU, RIGHT-CLICK NETWORK, THEN SELECT PROPERTIES.

3

Result: The Network and Sharing Center displays.

OR right-click on the Network Icon inn the system tray and select “Open network and Sharing Center” option

ON THE LEFT-HAND SIDE OF THE WINDOW, CLICK THE CHANGE ADAPTER SETTINGS LINK.

4

Result: The Network Connections window displays.

Changing LAN card settings

RIGHT CLICK ON THE CORRECT LOCAL AREA CONNECTION, THEN SELECT PROPERTIES.

5

Result: The Local Area Connection Properties window displays.

Changing LAN card settings

SELECT INTERNET PROTOCOL VERSION 4 (TCP/IPV4) SO THAT IT IS HIGHLIGHTED, THEN CLICK THE PROPERTIES

BUTTON.

6

Result: The Internet Protocol Version 4 (TCP/IPv4) Properties window displays.Note: Do not un-check the box; doing so will disable the Internet Protocol and prevent connection to the Internet.

Changing LAN card settings

FROM THE GENERAL TAB, VERIFY THAT OBTAIN AN IP ADDRESS AUTOMATICALLY AND OBTAIN DNS SERVER

ADDRESS AUTOMATICALLY ARE SELECTED.CLICK THE ADVANCED BUTTON.

7

Result: The Advanced TCP/IP Settings window displays.

Changing LAN card settings

CHANGE IP SETTINGFrom the IP Settings tab, verify the following:

Under IP addresses, DHCP Enabled is listed.Under Default gateways, nothing is listed.Automatic metric is checked

8

CHANGE DNS SETTINGFrom the DNS tab, verify the

following:

The DNS server addresses box is empty.

Append primary and connection specific DNS suffixes is selected.

Append parent suffixes of the primary DNS suffix is checked.

Register this connection’s addresses in DNS is checked.

Append these DNS suffixes (in order) is not selected

9

CHANGE WINS SETTING From the WINS tab, verify the following:

The WINS addresses box is empty.

Enable LMHOSTS lookup is checked.

Default: Use NetBIOS setting from the DHCP server is selected.

10

Click the OK button to close the Advanced TCP/IP Settings window.

11

From the Alternate Configuration tab, verify that Automatic private IP address is selected.

12

Click the OK button to close the Internet Protocol Version 4 (TCP/IPv4) Properties window.

You will be prompted to restart the computer.

13

PART-II

Network Configuration

14

NETWORK PARAMETERS

The following are common parameters that need to be set in a networked computer:DNS Servers (e.g. 137.207.32.32) The logical (e.g. IP) address of the DNS servers to be used to resolve domain names

These can be local (e.g. frankie.csfac8.uwindsor.ca) or remote (e.g. www.google.ca)

Host and domain information This includes the computer’s name (e.g. elvis) and the domain on which it resides (e.g. csfac8.uwindsor.ca)

15

NETWORK PARAMETERS

Logical address (e.g. IP address: 137.207.132.21) This address is required to participate on a WAN, such as the Internet

Subnet mask (e.g. 255.255.0.0) This is the binary mask that should be used to extract the network and subnet information from the host’s address

Default gateway (e.g. 137.207.32.2) This is the logical (e.g. IP) address of the router which should receive the host’s Internet-bound packets

All of these values would be given to a computer’s user by a network administrator

16

DNS SERVERS

DNS servers use the DNS protocol to determine the logical (e.g. IP) address of a host, given its domain namee.g. www.google.ca: 64.233.167.99

Many servers are given (in a specific order) so that local DNS servers are firstThis is because the main DNS servers (Internic) would not know local domain names e.g. An Internic server would know about uwindsor.ca, but not frankie.csfac8.uwindsor.ca)

These server addresses would usually be well-known

17

HOST AND DOMAIN INFO

Host name: This is the name of the host on the network

e.g. elvis

Domain name: This is the name of the domain on which the host resides

A domain is a named group of computers, which may correspond to a subnet of addresses

e.g. csfac8.uwindsor.ca refers to the LAN on the 8th floor of Lambton Tower

Given these two pieces of information, the host’s DNS name would be elvis.csfac8.uwindsor.ca Depending on the operating system, the domain may require that you log on first

The network admin will create one or more domains, but each host’s user can determine the host name, provided it is unique

18

LOGICAL ADDRESS

This is typically an IP address This address is necessary for all WAN (including Internet)

communication Routing uses the logical address for finding the path for packets

These addresses are normally assigned automatically by a DHCP/BOOTP server They can be random addresses on the network, or sequentially

assigned

19

SUBNET MASK

The subnet mask that it used by the host is the same subnet mask used by the nearest routers e.g. If using 2-level subnetting of 2 and 3 bits, this mask would be

the last subnet mask used (137.207.248.0)

A network admin would know the subnet masks he/she assigned to each network

20

DEFAULT GATEWAY

The default gateway (router) is the router to which all Internet-bound traffic should be sentTypically, a LAN will have exactly one router, and this will be its address

If there is more than one router, and only one leads to the Internet, the Internet-connected router’s address is used here

If there is more than one router that connects to the Internet, either address could be used

The network admin would know the address of the routers

21

THANKYOU

Q & A

For My Slides and Handoutshttp://zeeshanacademy.blogspot.com/https://www.facebook.com/drzeeshanacademy