Aruba Networks AirOS v2.3, User Manual

Page: 142 / 254

132 Aruba AirOS Part 0500036-02
v2.3 User Guide January 2005
3 Configure the Subnet and Subnet mask. To make the IKE key global specify 0.0.0.0 and
0.0.0.0 for both the values.
4 Configure the
IKE Shared Secret and Verify IKE Shared Secret
.
5 Click
Done
to apply the configurations.
6 Click
Back
to return to the main VPN L2TP configuration page.
IKE Policies
1 Click
Add
under IKE Policies opens the IPSEC Policy configuration page.
2 Set the
Priority
to 1 for this configuration to take priority over the Default setting
3 Set the
Encryption
type to
DES
or
3DES.
4 Set the
HASH Algorithm
to
SHA
or
MD5
.
5 Set the
Authentication to Pre-Share
or
RSA
.
6 Set the
Diffie Helman Group
to
1
or
2
.
7
The configurations from a through e along with the pre-share key need to be reflected in the VPN
client configuration. When using a 3
rd
party VPN client, set the VPN configuration on clients to
match the choices made above. In case the Aruba dialer is used, these configuration need to be
made on the dialer prior to downloading the dialer onto the local client
.
8 Click
Apply
to apply the changes.
9 Click
Back
to return to the main VPN L2TP configuration page.
10 Click
Apply
to apply the changes made before navigating to other pages.
Configuring VPN with PPTP Example
The following pre-requisites must be configured:
1 The steps in “Enabling VPN Authentication” must be completed along with the PPTP
configuration to use PPTP.
2 Enable VPN Authentication as described in the previous section “Enabling VPN Authen-
tication” .
3 Navigate to the
Configuration > Security > VPN Settings > PPTP
page