PPP configuration task list
272
IPLink Software Configuration Guide
25 • PPP configuration
PPP configuration task list
To configure PPP, perform the following tasks:
•
Creating an IP interface for PPP
•
Configuring for IP address auto-configuration from PPP (see
page 274
)
•
Creating a PPP subscriber (for authentication) (see
page 274
)
•
Configuring a PPPoE session (see
page 276
)
•
Configuring a serial port for PPP (see
page 278
)
•
Creating a PPP interface within the CS context (not currently available)
•
Creating a PPP profile (see
page 279
)
•
Displaying PPP configuration information (see
page 280
)
•
Debugging PPP (see
page 281
)
Creating an IP interface for PPP
An IP interface is required to link a PPP connection to the IP context. The IP interface must apply a network
address port translation (NAPT) if the PPP service provider only offers a single IP address and not an IP sub-
net, or if the IP addresses on the LAN shall be private and hidden behind a public IP address (see 12,
“NAT/
NAPT configuration”
on page 128 for more information about NAPT).
This procedure describes how to create an IP interface for PPP
Mode: Context IP
Step
Command
Purpose
1
node(ctx-ip)[router]#interface name
Creates the new interface
name
, which repre-
sents an IP interface.
2
node(if-ip)[name]#point-to-point
Only defines what route is entered into the IP
routing table:
•
point-to-point: A route to the IP address of
the PPP interface (assigned by the PPP peer)
is entered into the routing table.
•
no point-to-point: A route to the subnet
defined by IP address of the PPP interface
(assigned by the PPP peer) is entered into
the routing table. The class of the IP address
determines the size of the subset.
Recommendation: Use ‘point-to-point’ and spec-
ify a default route.