ZyXEL Communications P-128IMH, Руководство пользователя, Страница: 59 / 191

Prestige 128IMH ISDN Modem/ Router/Hub
Internet Access 3-3
that it receives; when set to none, it will not send any RIP packets and will ignore any RIP
packets received.
The Version field controls the format and the broadcasting method of the RIP packets that the
Prestige sends (it recognizes both formats when receiving). RIP-1 is universally supported; but
RIP-2 carries more information. RIP -1 is probably adequate for most networks, unless you have a
unusual network topology.
Both
RIP-2B
and
RIP-2M
sends the routing data in RIP-2 format; the difference being that
RIP-
2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can reduce the load
on non-router machines since they generally do not listen to the RIP multicast address and so will
not receive the RIP packets. However, if one router uses multicasting, then all routers on your
network must use multicasting, also.
By default, RIP direction is set to
Both
and the Version set to
RIP-1
.
3.2.3 DHCP Configuration
DHCP (Dynamic Host Configuration Protocol) allows the individual clients (workstations) to
obtain the TCP/IP configuration at start-up from a centralized DHCP server. The Prestige has
built-in DHCP server capability, enabled by default, which means it can assign IP addresses, an
IP default gateway and DNS servers to Windows 95, Windows NT and other systems that support
the DHCP client.
IP Pool Setup
The Prestige is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to
192.168.1.64. This configuration leaves 31 IP addresses (excluding the Prestige itself) in the
lower range for other server machines, e.g., server for mail, FTP, telnet, web, etc., that you may
have.
DNS Server Address
DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and
vice versa, e.g., the IP address of
www.zyxel.com is 204.217.0.2. The DNS server is extremely
important because without it, a user must know the IP address of a machine before s/he can access