Справочник Пользователя для ZyXEL Communications Corporation V630
Chapter 11 WLAN Profile
V630 User’s Guide
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11.2.2 User Authentication
You can use WPA or WPA2 to have a RADIUS server authenticate users before they can use
the wireless network. You store each user’s user name and password on the RADIUS server.
However, every wireless client in the wireless network has to support IEEE 802.1x to do this.
the wireless network. You store each user’s user name and password on the RADIUS server.
However, every wireless client in the wireless network has to support IEEE 802.1x to do this.
Unauthorized devices can still see the information that is sent in the wireless network, even if
they cannot use the wireless network. Furthermore, there are ways for unauthorized wireless
users to get a valid user name and password. Then, they can use that user name and password
to use the wireless network.
they cannot use the wireless network. Furthermore, there are ways for unauthorized wireless
users to get a valid user name and password. Then, they can use that user name and password
to use the wireless network.
11.2.3 Encryption
Wireless networks can use encryption to protect the information that is sent in the wireless
network. Encryption is like a secret code. If you do not know the secret code, you cannot
understand the message.
network. Encryption is like a secret code. If you do not know the secret code, you cannot
understand the message.
Many types of encryption use a key to protect the information in the wireless network. The
longer the key, the stronger the encryption. Every wireless client in the wireless network must
have the same key.
longer the key, the stronger the encryption. Every wireless client in the wireless network must
have the same key.
11.3 IP Address Assignment
Every computer on a network must have a unique IP address.
11.3.1 DHCP Client
The V630 can get an IP address automatically if the network has a DHCP (Dynamic Host
Control Protocol) server to give them out.
Control Protocol) server to give them out.
11.3.2 Static IP
If you have a static (fixed) IP address from the ISP, you can manually assign it to the V630’s
WAN port.
WAN port.
11.3.3 PPPoE
The V630 supports PPPoE (Point-to-Point Protocol over Ethernet) for a dial-up connection.
You will need a user name and password from the Internet Service Provider (ISP).
You will need a user name and password from the Internet Service Provider (ISP).
11.4 DNS Server
A DNS (Domain Name System) server maps domain names (like www.zyxel.com) to their
corresponding IP addresses (204.217.0.2 in the case of www.zyxel.com). This lets you use
domain names to access web sites without having to know their IP addresses. When using
DHCP. the V630 can receive the IP address of a DNS server automatically (along with the
V630’s own IP address). With a static IP address, you can also manually enter a DNS server IP
address in the V630.
corresponding IP addresses (204.217.0.2 in the case of www.zyxel.com). This lets you use
domain names to access web sites without having to know their IP addresses. When using
DHCP. the V630 can receive the IP address of a DNS server automatically (along with the
V630’s own IP address). With a static IP address, you can also manually enter a DNS server IP
address in the V630.