CCNA Cisco Certified Network Associate Study Guide - FTP Server

248 Chapter 5 � IP Routing
2621A
The following list describes each command in the string:
ip route The command used to create the static route.
destination network The network you are placing in the routing
table.
mask Indicates the subnet mask being used on the network.
next hop address The address of the next hop router that will receive
the packet and forward it to the remote network. This is a router interface
that is on a directly connected network. You must be able to ping the
router interface before you add the route.
exit interface Used in place of the next hop address if desired. Must
be on a point-to-point link, such as a WAN. This command does not work
on a LAN; for example, Ethernet.
administrative distance By default, static routes have an administrative
distance of 1. You can change the default value by adding an
administrative weight at the end of the command.
permanent If the interface is shut down or the router cannot communicate
to the next hop router, the route is automatically discarded from the
routing table. Choosing the permanent option keeps the entry in the routing
table no matter what happens.
To be able to understand how static routes work, I will demonstrate the
configuration on my sample internetwork, as shown previously in Figure 5.4.
Each routing table automatically includes directly connected networks. To
be able to route to all networks in the internetwork, the routing table must
include information that defines where these other networks are located and
how to get there.
The 2621 router is connected only to network 172.16.10.0. For the
2621A router to be able to route to all networks, the following networks
must be configured in the routing table:
� 172.16.20.0
� 172.16.30.0
� 172.16.40.0
� 172.16.50.0