D-Link DI-1162M - Manual (Page 34)

DI-1162/DI-1162M Remote Access Router
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IP Address – This specifies the destination network IP address (or a host, depending on the netmask) and pairs
it with a gateway.
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Netmask – This mask shows how the destination IP address is to be divided into network, subnet and host
parts. The netmask has ones in the bit positions in the 32-bit address which are to be used for the network and
subnet parts, and zeros for the host part.
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Gateway – This is the adjacent next hop router, for which the packets, arriving to this router with this
destination IP address, will be forwarded.
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Hops – This is an associated RIP metric that may have its value set between 1 and 15, inclusive. A metric
value higher than 15 (such as 16) means that the network is unreachable.
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Intf – This is the network interface containing the gateway that the packets will be forwarded through.
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State – This enables or disables a particular entry.
IP Static Route Examples
The IP Static Route Table shown in the example IP Static Route screen above has the first three entries configured
for common implementations of static routing.
The first entry assumes that WAN1 has a connection to the Internet and defines the default next hop router. If you
use this router to connect to the Internet it is very important that you create an entry here that defines the default
next hop router as your ISP. This configuration is also commonly used when RIP exchanges with other Internet
routers (on WAN1) are disabled.
The second entry shows how to configure static routes when there is another router on the LAN. The IP Address
shown (202.12.125.0) is the network address for a branch office, for example. The Gateway Address
(210.172.23.1) is the IP address to the LAN port on another router on LAN1 that maintains a WAN connection to
the branch office.
The third entry is an example of an enterprise WAN connection (through telephone lines) to another router, at a
branch office for example. The IP Address is the network address of the branch office. The Gateway Address is
the IP Address of the WAN port on the branch office router. This configuration assumes there is a modem on
WAN2 maintaining a dial-up connection to the branch office.
OSPF Configuration
Open Shortest Path First (OSPF) is a link-state routing algorithm that provides more control over the routing
process and responds faster to changes as compared to distance-vector routing. OSPF routing table updates only
take place when necessary rather than at regular intervals, thereby reducing traffic and saving network bandwidth.
The OSPF Configuration screen below allows you to specify an OSPF Router ID, determine As Border Router
status, and Enable OSPF under State. Currently, OSPF over frame relay is not supported.