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The controller also supports GRE tunnels between the controller and other GRE-capable devices. This section
describes how to configure a GRE tunnel to such a device and how to direct traffic into the tunnel.
NOTE: The controller uses GRE tunnels for communications between master and local Dell controllers; these GRE tunnels are
automatically created and are not subject to the configuration described in this section.
Creating a Tunnel Interface
To create a GRE tunnel on the controller, you need to specify the following:
l Tunnel ID: this can be a number between 1 and 2147483647.
l IP address and netmask for the tunnel.
l Tunnel source: the local endpoint for the tunnel on the controller. This can be one of the following:
n Loopback address of the controller
n A specified IP address
n A specified VLAN
l Tunnel destination: the IP address of the remote endpoint of the tunnel on the other GRE device.
In the WebUI
1. Navigate to the Configuration > Network > IP > GRE Tunnels page.
2. Click Add.
3. Enter the tunnel ID.
4. Enter the IP address and netmask for the tunnel.
5. Select (check) Enabled to enable the tunnel interface.
6. Select the tunnel source, if it is not the loopback address of the controller. If you select IP Address, enter the IP
address for the tunnel source. If you select VLAN, select the ID of the VLAN.
7. Enter the IP address of the tunnel destination.
8. Click Apply.
In the CLI
(host) (config) #interface tunnel <id>
tunnel mode gre <num> <ip>
ip address <ipaddr> <netmask>
no shutdown
tunnel source {<ipaddr>| loopback | vlan <vlan>}
tunnel destination <ipaddr>
Directing Traffic into the Tunnel
You can direct traffic into the tunnel by configuring one of the following:
l Static route, which redirects traffic to the IP address of the tunnel
l Firewall policy (session-based ACL), which redirects traffic to the specified tunnel ID
Static Routes
You can configure a static route that specifies the IP address of a tunnel as the next-hop for traffic for a specific
destination. See "Configuring Static Routes" on page 123 for descriptions of how to configure a static route.
Firewall Policy
You can configure a firewall policy rule to redirect selected traffic into a tunnel.
DellPowerConnectW-SeriesArubaOS6.2 | User Guide NetworkConfigurationParameters | 126