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Configuring IP Addresses

Updated on November 12, 2014

Configure IP Addresses

When configuring IP addresses, keep in mind the following:

  • You cannot assign the subnet address to a host (such as 192.168.0.0 or 10.0.0.0).
  • The /x notation identifies the number of bits in the subnet mask.
    • /8 indicates a subnet mask of 255.0.0.0.
    • /16 indicates a subnet mask of 255.255.0.0.
    • /24 indicates a subnet mask of 255.255.255.0.
  • Portions of the subnet mask that include a 1 identify the subnet address. This portion of the address must be the same for all hosts on the subnet.
  • Portions of the subnet mask that include a 0 identify the host address. This portion of the address must be unique between all hosts.
  • You cannot assign the last address to a host (such as 192.168.0.255 or 10.0.255.255)

Complete the following steps:

  1. Click the networking icon in the Task Bar and select Open Network and Sharing Center.
  2. To configure the Local Area Connection adapter, click the Local Area Connection link.
  3. Click the Properties button.
  4. Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
  5. To manually configure the IP address and default gateway, ensure that Use the following IP address: is selected. Type the required address and mask values, then click OK.
  6. Click Close.
  7. Click Close.
  8. To configure the other network adapter, click the Change adapter settings link.
  9. Right-click the Local Area Connection 2 adapter, and click Properties.
  10. Repeat steps 5 through 6 to modify the TCP/IP settings for the other network adapter.

Configure a DHCP Server

Complete the following steps:

To configure the IPv4 DHCP scope on Server:

  1. Click Start/Administrative Tools/DHCP to start the DHCP console.
  2. Expand the DHCP server.
  3. Right-click the IPv4 protocol and choose New Scope....
  4. Click Next to start the New Scope wizard.
  5. Name the scope, then click Next.
  6. Type a start IP address and an end IP address.
  7. Set the subnet mask by typing the mask value (example: 255.255.255.0) or typing the number of subnet mask bits (example: 24) in the Length field. Click Next.
  8. Click Next.
  9. Accept the lease duration. Click Next.
  10. Ensure that Yes is selected and click Next.
  11. Set the default gateway value, and click Add.
  12. Click Next.
  13. Set the DNS server value, and click Add.
  14. Click Next.
  15. Click Next.
  16. Ensure that Yes is selected to activate the scope and click Next.
  17. Click the Finish button to close the wizard and create the scope.

To configure the laptop in the Support Office to obtain IP and DNS addresses automatically from the DHCP server:

  1. Click on the network icon in the Task Bar and select Open Network and Sharing Center.
  2. Click the Local Area Connection link and select Properties.
  3. Select Internet Protocol Version 4 (TCP/IPv4), then click the Properties button.
  4. To use DHCP, select the following:
  • Obtain an IP address automatically
  • Obtain DNS server address automatically
Click OK. Click Close. Click Close.

Configuring more DHCP Clients

Complete the following steps:

To configure the IPv4 DHCP scope on Server:

  1. Click Start/Administrative Tools/DHCP to start the DHCP console.
  2. Expand the DHCP server.
  3. Right-click the IPv4 protocol and choose New Scope....
  4. Click Next to start the New Scope wizard.
  5. Name the scope, then click Next.
  6. Type a start IP address and an end IP address.
  7. Set the subnet mask by typing the mask value (example: 255.255.255.0) or typing the number of subnet mask bits (example: 24) in the Length field. Click Next.
  8. Click Next.
  9. Accept the lease duration. Click Next.
  10. Ensure that Yes is selected and click Next.
  11. Set the default gateway value, and click Add.
  12. Click Next.
  13. Set the DNS server value, and click Add.
  14. Click Next.
  15. Click Next.
  16. Ensure that Yes is selected to activate the scope and click Next.
  17. Click the Finish button to close the wizard and create the scope.

To configure the laptop in the Support Office to obtain IP and DNS addresses automatically from the DHCP server:

  1. Click on the network icon in the Task Bar and select Open Network and Sharing Center.
  2. Click the Local Area Connection link and select Properties.
  3. Select Internet Protocol Version 4 (TCP/IPv4), then click the Properties button.
  4. To use DHCP, select the following:
  • Obtain an IP address automatically
  • Obtain DNS server address automatically
Click OK. Click Close. Click Close.

DHCP Client Work Around

Complete the following steps:

  1. Click on the network icon in the Task Bar and select Open Network and Sharing Center.
  2. Click the Local Area Connection link and select Properties.
  3. Select Internet Protocol Version 4 (TCP/IPv4), then click the Properties button.
  4. Record the current static values for the IP address, subnet mask, default gateway, and DNS server addresses.
  5. To use DHCP, select the following:
  • Obtain an IP address automatically
  • Obtain DNS server address automatically
Click the Alternate Configuration tab. Select User configured, then fill in the values you recorded in step 5. Click OK. Click Close.

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