ZyXEL Communications AMG1302-T11C, Руководство пользователя

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Chapter 8 Home Networking
AMG1302-T11C User’s Guide
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specify the network number while the last number identifies an individual computer on that
network.
Once you have decided on the network number, pick an IP address that is easy to remember, for
instance, 192.168.1.1, for your AMG1302-T11C, but make sure that no other device on your
network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your AMG1302-T11C will
compute the subnet mask automatically based on the IP address that you entered. You don't need
to change the subnet mask computed by the AMG1302-T11C unless you are instructed to do
otherwise.
Private IP Addresses
Every machine on the Internet must have a unique address. If your networks are isolated from the
Internet, for example, only between your two branch offices, you can assign any IP addresses to
the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has
reserved the following three blocks of IP addresses specifically for private networks:
• 10.0.0.0 — 10.255.255.255
• 172.16.0.0 — 172.31.255.255
• 192.168.0.0 — 192.168.255.255
You can obtain your IP address from the IANA, from an ISP or it can be assigned from a private
network. If you belong to a small organization and your Internet access is through an ISP, the ISP
can provide you with the Internet addresses for your local networks. On the other hand, if you are
part of a much larger organization, you should consult your network administrator for the
appropriate IP addresses.
Note: Regardless of your particular situation, do not create an arbitrary IP address;
always follow the guidelines above. For more information on address assignment,
please refer to RFC 1597, “Address Allocation for Private Internets” and RFC 1466,
“Guidelines for Management of IP Address Space”.
8.7.5 RIP Setup
RIP (Routing Information Protocol) allows a router to exchange routing information with other
routers. The
RIP Direction field controls the sending and receiving of RIP packets. When set to:
• Both - the AMG1302-T11C will broadcast its routing table periodically and incorporate the RIP
information that it receives.
• In Only - the AMG1302-T11C will not send any RIP packets but will accept all RIP packets
received.
• Out Only - the AMG1302-T11C will send out RIP packets but will not accept any RIP packets
received.
• None - the AMG1302-T11C 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
AMG1302-T11C 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
an unusual network topology.