• DHCP Relay Service: Select the DHCP relay service that you want to use for this L3oGRE
forwarding profile. The options that appear here are the DHCP services that you created
in Configuring DHCP Services.
• DHCP Relay Through Tunnel: Select the Enable check box to enable DHCP relay for
tunneled traffic.
6. In the Gateway Tunnel Settings section, configure the following:
• Tunnel Interface Address
• Tunnel Keep Alive: Selecting the Enable check box enables keepalive for tunnels and
allows you to configure keepalives for point-to-point GRE tunnels. The tunnel keepalive
mechanism enables, extends, and implements an interface-specific command for tunnel
interfaces, and delivers the ability to bring down the line protocol of a tunnel. The tunnel
keepalive mechanism also addresses these additional requirements:
• The tunnel keepalive mechanism functions even if the far tunnel endpoint does not
support keepalives.
• The tunnel keepalive mechanism originates keepalives.
• The tunnel keepalive mechanism processes keepalives.
• The tunnel keepalive mechanism replies to keepalive packets of the far end, even when
the line protocol of the tunnel is down. You can configure keepalives with:
• Keep Alive Period (secs): Specify the time in seconds between sending retry messages
to the keepalive IP address. Enter an integer from 2 to 255. The default is 10.
• Keep Alive Retry: Specify the retry period to send messages to the keepalive IP address.
The default value is 3.
7. Click Create New to save the new configuration details.
You have completed adding an L3oGRE profile.
SmartCell Gateway 200/Virtual SmartZone High-Scale for Release 3.4.1 Administrator Guide
193
Configuring Services and Profiles
Working with Profiles
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