
Configuring GRE, NAT, RIPSO, and BFE Services
314470-15.5 Rev 00 21-3
Using Site Manager
To enable and disable the transmission of GRE keepalive messages between a
tunnel’s local end point and one of its configured remote end points, complete the
following tasks:
Setting the Timeout Interval for GRE Keepalive Messages
When you enable the GRE keepalive message functionality, the timeout interval is
set to 10 seconds by default. The timeout interval is the amount of time in seconds
that the router waits between sending successive keepalive messages from a GRE
tunnel’s local end point to one of its remote end points.
You can use the BCC or Site Manager to change the value of the timeout interval.
Using the BCC
To change the default value of the GRE keepalive retry timeout interval for a GRE
tunnel’s remote end point, navigate to the remote GRE tunnel interface prompt
(for example,
box; tunnels; gre/boston; remote-endpoint/austin) and enter:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose IP. The IP menu opens.
3. Choose GRE. The GRE Create Tunnels List window
opens.
4. Click on Remote Conn. The GRE Remote Connections List
window opens.
5. Select the remote tunnel end point that
you want to disable or reenable from the
list.
6. Set the Keepalive parameter. Click on
Help or see the parameter description on
page A-14
.
7. Click on Apply. The transmission of GRE keepalive
messages is enabled or disabled for the
selected tunnel end point.
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