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Chapter 8 Home Networking
VMG8825-B Series User’s Guide
139
8.9 Technical Reference
This section provides some technical background information about the topics covered in this chapter.
8.9.1
LANs, WANs and the VMG
The actual physical connection determines whether the VMG 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 65
LAN and WAN IP Addresses
8.9.2 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 VMG as a DHCP server or disable it.
When configured as a server, the VMG 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 VMG 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.
8.9.3 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.
DSL
Содержание VMG8825-B Series
Страница 15: ...15 PART I User s Guide...
Страница 65: ...65 PART II Technical Reference...
Страница 204: ...Chapter 17 Home Connectivity VMG8825 B Series User s Guide 204 Figure 115 Network Setting Home Connectivity...
Страница 231: ...Chapter 23 Voice VMG8825 B Series User s Guide 231 Figure 139 VoIP SIP SIP Account Add new account Edit...
Страница 236: ...Chapter 23 Voice VMG8825 B Series User s Guide 236 Figure 141 VoIP SIP SIP Service Provider Add new provider Edit...
Страница 297: ...Chapter 40 Firmware Upgrade VMG8825 B Series User s Guide 297 Figure 182 Error Message...
Страница 313: ...313 PART III Appendices Appendices contain general information Some information may not apply to your device...
Страница 360: ...Index VMG8825 B Series User s Guide 360 Z ZyXEL Family Safety page 217...