Introduction
118
IPLink Software Configuration Guide
11 • IP interface configuration
Introduction
This chapter provides a general overview of IPLink interfaces and describes the tasks involved in their configu-
ration.
Within IPLink software, an interface is a logical entity that provides higher-layer protocol and service informa-
tion, such as Layer 3 addressing. Interfaces are configured as part of a context and are independent of physical
ports and circuits. The separation of the interface from the physical layer allows for many of the advanced fea-
tures offered by IPLink software. For higher layer protocols to become active, a physical port or circuit must be
bound to an interface. IP interfaces can be bound physically to Ethernet, SDSL or Frame Relay ports according
to the appropriate transport network layer.
Software IP interface configuration task list
To configure interfaces, perform the tasks in the following sections:
•
Creating an IP interface (see
page 118
)
•
Deleting an IP interface (see
page 119
)
•
Setting the IP address and netmask (see
page 120
)
•
ICMP message processing (see
page 121
)
•
ICMP redirect messages (see
page 121
)
•
Router advertisement broadcast message (see
page 121
)
•
Defining the MTU of the interface (see
page 122
)
•
Configuring an interface as a point-to-point link (see
page 123
)
•
Displaying IP interface information (see
page 123
)
•
Testing connections with the
ping
command (see
page 124
)
Creating an IP interface
Interface names can be any arbitrary string. Use self-explanatory names for your interfaces, which reflect their usage.
Mode: Context IP
Step
Command
Purpose
1
node(ctx-ip)[router]#interface
name
Creates the new interface
name
, which represents an IP
interface. This command also places you in interface
configuration mode for the interface just created.
2
node(if-ip)[
name
]#
You are now in the interface configuration mode, where
you can enter specific configuration parameters for the
IP interface
name
.