Chapter 7 Home Networking
VMG1312-B10C User’s Guide
121
7.10.1
LANs, WANs and the Device
The actual physical connection determines whether the Device ports are LAN or WAN ports. There
are two separate IP networks, one inside the LAN network and the other outside the WAN network
as shown next.
Figure 58
LAN and WAN IP Addresses
7.10.2 DHCP Setup
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to
obtain TCP/IP configuration at start-up from a server. You can configure the Device as a DHCP
server or disable it. When configured as a server, the Device provides the TCP/IP configuration for
the clients. If you turn DHCP service off, you must have another DHCP server on your LAN, or else
the computer must be manually configured.
IP Pool Setup
The Device is pre-configured with a pool of IP addresses for the DHCP clients (DHCP Pool). See the
product specifications in the appendices. Do not assign static IP addresses from the DHCP pool to
your LAN computers.
7.10.3 DNS Server Addresses
DNS (Domain Name System) maps a domain name to its corresponding IP address and vice versa.
The DNS server is extremely important because without it, you must know the IP address of a
computer before you can access it. The DNS server addresses you enter when you set up DHCP are
passed to the client machines along with the assigned IP address and subnet mask.
There are two ways that an ISP disseminates the DNS server addresses.
• The ISP tells you the DNS server addresses, usually in the form of an information sheet, when
you sign up. If your ISP gives you DNS server addresses, enter them in the
DNS Server
fields in
the
DHCP Setup
screen.
WAN
LAN
Summary of Contents for VMG1312-B10C
Page 4: ...Contents Overview VMG1312 B10C User s Guide 4 Diagnostic 265 Troubleshooting 271 ...
Page 14: ...Table of Contents VMG1312 B10C User s Guide 14 ...
Page 15: ...15 PART I User s Guide ...
Page 16: ...16 ...
Page 22: ...Chapter 1 Introducing the Device VMG1312 B10C User s Guide 22 ...
Page 33: ...33 PART II Technical Reference ...
Page 34: ...34 ...
Page 64: ...Chapter 5 Broadband VMG1312 B10C User s Guide 64 ...
Page 100: ...Chapter 6 Wireless VMG1312 B10C User s Guide 100 ...
Page 124: ...Chapter 7 Home Networking VMG1312 B10C User s Guide 124 ...
Page 166: ...Chapter 10 Network Address Translation NAT VMG1312 B10C User s Guide 166 ...
Page 176: ...Chapter 12 Interface Group VMG1312 B10C User s Guide 176 ...
Page 192: ...Chapter 14 Firewall VMG1312 B10C User s Guide 192 ...
Page 198: ...Chapter 16 Parental Control VMG1312 B10C User s Guide 198 ...
Page 208: ...Chapter 18 Certificates VMG1312 B10C User s Guide 208 ...
Page 211: ...Chapter 19 VPN VMG1312 B10C User s Guide 211 Figure 121 IPSec VPN Add ...
Page 224: ...Chapter 20 Log VMG1312 B10C User s Guide 224 ...
Page 234: ...Chapter 24 IGMP Status VMG1312 B10C User s Guide 234 ...
Page 238: ...Chapter 25 xDSL Statistics VMG1312 B10C User s Guide 238 ...
Page 242: ...Chapter 27 User Account VMG1312 B10C User s Guide 242 ...
Page 248: ...Chapter 30 TR 064 VMG1312 B10C User s Guide 248 ...
Page 252: ...Chapter 31 Time Settings VMG1312 B10C User s Guide 252 ...
Page 264: ...Chapter 35 Configuration VMG1312 B10C User s Guide 264 ...
Page 270: ...Chapter 36 Diagnostic VMG1312 B10C User s Guide 270 ...
Page 288: ...Appendix B Legal Information VMG1312 B10C User s Guide 288 ...