Setting An Ip Address; Enabling Ppp Authentication - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Configuring Backup WAN Connections
Configuring a Persistent Backup Connection
3-56

Setting an IP Address

The backup interface's IP address must be on a different network than that of
the primary connection. (The router does not allow more than one interface
to be on the same network.) To configure the IP address, enter this command
from the backup PPP interface configuration mode context:
Syntax: ip address <A.B.C.D> <subnet mask | /prefix length>
For example, if the primary connection were on network 10.1.1.0 /30, you
could assign the following address to the backup interface:
ProCurve(config-ppp 2)# ip address 10.10.10.1 /30
The peer's backup IP address will also be on a different network than the
primary connection. If you are using static routing, you must configure a
floating static route to the remote network through the backup interface. See
"Configuring a Floating Static Route for a Persistent Backup Connection" on
page 3-67.

Enabling PPP Authentication

The ProCurve Secure Router that answers a backup call uses caller ID to
ensure that it only connects calls from authorized peers. This prevents the
router from making an expensive backup connection with a random caller. In
addition, you should consider having the router that originates the backup call
require PPP authentication. Authentication ensures that the backup number
called still belongs to an authorized peer. (You can also configure the answer-
ing router to request authentication.)
The ProCurve Secure Router supports PAP or CHAP authentication for the
backup connection.
Requiring Authentication From the Peer. To require PAP authentication
from the peer:
1. Move to the configuration mode for the backup PPP interface.
2. Enable PAP authentication:
ProCurve(config-ppp 2)# ppp authentication pap
3. Add the peer's username and password to the PPP database:
Syntax: username <peer's username> password <peer's password>
For example, you could enter:
ProCurve(config-ppp 2)# username london password procurve