Chapter 4 Troubleshooting the Cable M odem
Frequently Asked Questions
This section provides answers to common questions about the cable modem.
How Do I Configure TCP/IP Protocol?
To configure TCP/IP protocol, you need to have an Ethernet Network Interface Card
(NIC) with TCP/IP communications protocol installed on your system. TCP/IP is a
communications protocol used to access the Internet. This section contains
instructions for configuring TCP/IP on your Internet devices to operate with the
cable modem in Microsoft Windows or Macintosh environments.
TCP/IP protocol in a Microsoft Windows environment is different for each
operating system. Follow the appropriate instructions in this section for your
operating system.
Configuring TCP/IP on Window s 7 Sy stems
1 Open Network Connections by clicking the Start button, and then clicking
Control Panel.
2 In the Search field, type adapter, and then, under Network and Sharing Center,
click View network connections.
3 Right-click the connection that you want to change, and then click Properties. If
you are prompted for an administrator password or confirmation, type the
password or provide confirmation. The Local Area Connection Properties
window appears.
4 Click the Networking tab.
5 Under This connection uses the following items, click either Internet Protocol
Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6), and then click
Properties.
6 To specify IPv4 IP address settings, do one of the following:
To get IP settings automatically using DHCP, click Obtain an IP address
automatically, and then click OK.
To specify an IP address, click Use the following IP address, and then, in the
IP address, Subnet mask, and Default gateway fields, type the IP address
settings.
7 To specify IPv6 IP address settings, do one of the following:
To get IP settings automatically using DHCP, click Obtain an IPv6 address
automatically, and then click OK.
To specify an IP address, click Use the following IPv6 address, and then, in
the IPv6 address, Subnet prefix length, and the Default gateway fields, type
the IP address settings.
8 To specify DNS server address settings, do one of the following:
