Management and Configuration Guide (Includes ACM xl) 2005-12

ProCurve Secure Access 700wl Series Management and Configuration Guide 7-11
Setting up Wireless Data Privacy
Step 13.
Immediately create and save a backup of your system. This saves both the private key and the
saved certificates. See “Backing Up and Restoring the System Configuration” on page 8-11 for
information on backing up your system.
Caution:
Be sure to back up your system immediately. This is the only way to ensure that the
certificates and keys can be restored if your system becomes corrupted. If the private key is lost,
certificates based on that key will become invalid.
IP Address Assignment for Tunneling
If you plan to use IPSec or PPTP/L2TP for Wireless Data Privacy, you must configure the method by
which your Access Controllers will assign IP addresses to the client.
Note:
The same tunneling address assignment method is used by both PPTP/L2TP and IPSec.
Since PPTP and L2TP were originally designed as remote access protocols, used by traveling clients to
access their home network, the PPTP and L2TP protocol assigns an IP address to the client computer.
But in a 700wl Series system environment, a client usually obtains an IP address before enabling PPTP
and L2TP encryption. This results in two IP addresses: an initial one that describes the PPTP or L2TP
tunnel, and one that describes the actual IP address used by the client (the inner tunnel).
A ProCurve Access Controller can be configured to assign this inner-tunnel address in one of two ways:
it can either assign an address from a range of addresses pre-specified by the network administrator, or
it can request an external DHCP server to assign an address.
The default is to have addresses assigned by a DHCP server.
» To configure the IP Address assignment method for the tunneling protocols, click the VPN icon in the
Navigation bar at the top of the Administrative Interface, then click the I
P Address Assignment tab. This
displays the IP Address Assignment page, as shown in Figure 7-9.
Figure 7-9. The IP Address Assignment tab
Step 1. In the System Components List, select the Access Controller for which you want to configure IP
addressing.
Step 2. On this page, enter values into the fields as described in Table 7-2 below.