Configuring an IPsec Tunnel
An IPsec tunnel is configured to ensure that the data flow between the networks is encrypted. When
configured, the IPsec tunnel to the controller secures corporate data.
You can configure an IPsec tunnel from the VC using the Instant UI or the CLI.
In the Instant UI
To configure a tunnel for IPsec protocol:
1. Click the
More > VPN
link in the Instant UI. The
Tunneling
window is displayed.
2. Select
Aruba IPSec
from the
Protocol
drop-down list.
3. Enter the IP address or fully qualified domain name (FQDN) for the primary VPN/IPsec endpoint in the
Primary host
text box.
4. Enter the IP address or FQDN for the backup VPN/IPsec endpoint in the
Backup host
text box. This entry
is optional. When you specify the primary and backup host details, the other details are displayed.
5. Specify the following parameters. A sample configuration is shown in
.
a. To allow the VPN tunnel to switch back to the primary host when it becomes available again, select
Enabled
from the
Preemption
drop-down list. This step is optional.
b. If
Preemption
is enabled, specify a value in seconds for
Hold time
. When preemption is enabled and
the primary host comes up, the VPN tunnel switches back to the primary host after the specified hold-
time. The default value for
Hold time
is 600 seconds.
c. To allow the IAP to create a backup VPN tunnel to the controller along with the primary tunnel, and
maintain both the primary and backup tunnels separately, select
Enabled
from the
Fast failover
drop-
down list. When fast failover is enabled and if the primary tunnel fails, the IAP can switch the data stream
to the backup tunnel. This reduces the total failover time to less than one minute.
d. To disconnect all wired and wireless users when the system switches during VPN tunnel transition from
primary to backup and backup to primary, set
Reconnect User On Failover
to
Enabled
.
e. To configure an interval during which the wired and wireless users are disconnected during a VPN tunnel
switch, specify a value in seconds for
Reconnect Time On Failover
within a range of 30–900 seconds.
By default, the reconnection duration is set to 60 seconds.
f. Specify a value in seconds for
Secs between test packets
. Based on the configured frequency, the IAP
can verify if an active VPN connection is available. The default value is 5 seconds, which means that the
IAP sends one packet to the controller every 5 seconds.
g. Enter a value for
Max allowed test packet loss
to define a number for lost packets, exceeding which
the IAP can determine that the VPN connection is unavailable. The default value is 2.
Figure 51
IPsec Configuration
Aruba Instant 6.5.0.0-4.3.0.0 | User Guide
VPN Configuration |
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