Users Guide

Table Of Contents
Dell PowerConnect ArubaOS 5.0 | User Guide Network Parameters | 69
WebUI
1. Navigate to the Configuration > Security > Access Control > Policies page.
2. Click Add to create a new firewall policy, or click Edit to edit a specific policy.
3. Click Add to create a new policy rule.
4. Configure the Source, Destination, and Service for the rule.
5. For Action, select redirect to tunnel. Enter the tunnel ID.
6. Configure any additional options, and click Add.
7. Click Apply.
CLI
ip access-list session <name>
<source> <destination> <service> redirect tunnel <id>
Tunnel Keepalives
The controller can determine the status of a GRE tunnel by sending periodic keepalive frames on the tunnel. If
you enable tunnel keepalives, the tunnel is considered to be “down” if there is repeated failure of the keepalives.
If you configured a firewall policy rule to redirect traffic to the tunnel, traffic is not forwarded to the tunnel until
it is “up”. When the tunnel comes up or goes down, an SNMP trap and logging message is generated. The remote
endpoint of the tunnel does not need to support the keepalive mechanism.
By default, the controller sends keepalive frames at 10-second intervals and retries keepalives up to three times
before the tunnel is considered to be down. You can reconfigure the intervals from the default. For the interval,
specify a value between 1-86400 seconds. For the retries, specify a value between 0-1024.
Using the WebUI
1. Navigate to the Configuration > Network > IP > GRE Tunnels page.
2. Click Edit for the tunnel for which you are enabling tunnel keepalives.
3. Select (check) Enable Heartbeats to enable tunnel keepalives and display the Heartbeat Interval and
Heartbeat Retries fields.
4. Enter values for Heartbeat Interval and Heartbeat Retries.
5. Click Apply.
Using CLI
interface tunnel id
tunnel keepalive [<interval> <retries>]