User guide

Getting Started 21
Software Release 2.4.1
C613-02021-00 REV B
When you are configuring the router remotely, if you change the configuration, for
instance the VLAN membership, of the port over which you are configuring, the router
is likely to break the connection.
For more information about switch ports and Virtual LANs (VLANs), see
Chapter 4, Physical and Layer 2 Interfaces in this document, and the Switching
chapter in the AR400 Series Router Software Reference.
For more information about IP addressing and routing, see Chapter 5, Routing
in this document, and the Internet Protocol (IP) chapter in the AR400 Series
Router Software Reference.
Setting Routes
The process of routing packets consists of selectively forwarding data packets
from one network to another. Your router makes a decision to send a packet to
a particular network on information it learns dynamically from listening to the
selected route protocol and on the static information entered as part of the
configuration process. In addition, you can configure user-defined filters to
restrict the way packets are sent.
Your router maintains a table of routes which holds information about routes to
destinations. The route table tells the router how to find a remote network or
host. A route is uniquely identified by IP address, network mask, next hop,
ifIndex, protocol and policy. A list of routes comprises all the different routes to
a destination. The routes may have different metrics, next hops, policy or
protocol. A list of routes is uniquely identified by its IP address and net mask.
The routing table is maintained dynamically by using one or more routing
protocols such as RIP, EGP and OSPF. These act to exchange routing
information with other routers or hosts.
You can also add static routes to the route table to define default routes to
external routers or networks and to define subnets.
To add a static route, enter the command:
ADD IP ROUTE=ipadd INTERFACE=interface NEXTHOP=ipadd
[CIRCUIT=miox-circuit] [DLCI=dlci]
[MASK=ipadd][METRIC=1..16] [METRIC1=1..16]
[METRIC2=1..65535][POLICY=0..7] [PREFERENCE=0..65535]
To displays the entire routing table, including both static and dynamic routes,
enter the command:
SHOW IP ROUTE
For more information about setting IP routes, see the Internet Protocol (IP)
chapter in the AR400 Series Router Software Reference.