Configuration Prerequisites; Configuration Procedure - HP 5920 Series Configuration Manual

Local tunnel interfaces using the same encapsulation protocol must not have the same tunnel source
•
and destination addresses.
You can use the following methods to configure a route to a destination over the GRE tunnel:
•
Configure a static route, using the destination address of the original packet as the destination
address of the route and the address of the peer tunnel interface as the next hop.
Enable a dynamic routing protocol on both the tunnel interface and the interface connecting
the private network, so the dynamic routing protocol can establish a routing entry with the
tunnel interface as the outgoing interface.
• The IP address of the tunnel interface and the tunnel destination address configured on the tunnel
interface must be in different subnets.

Configuration prerequisites

Configure an IP address for the interface (such as a VLAN interface, or a Loopback interface) to be
•
used as the source interface of the tunnel interface.
• Create a service Loopback group, specify its service type as tunnel, and add an available Ethernet
interface to the service Loopback group. For more information about service Loopback groups, see
Layer 2—LAN Switching Configuration Guide.

Configuration procedure

To configure a GRE over IPv4 tunnel:
Step
1. Enter system view.
2. Create a GRE over IPv4
tunnel interface and
enter its view.
3. Configure an IPv4 or
IPv6 address for the
tunnel interface.
Command
system-view
interface tunnel interface-number mode
gre
For information about how to assign an
IPv4 address to an interface, see
"Configuring IP addressing."
For information about how to assign an
IPv6 address to an interface, see
"Configuring basic IPv6
180
Remarks
N/A
By default, the device has no tunnel
interface.
You must configure the same tunnel
mode on both ends of a tunnel.
Otherwise, packet delivery may
fail.
By default, no IPv4 or IPv6 address
is configured for a tunnel interface.
When the passenger protocol is
IPv4, configure an IPv4 address for
the tunnel interface. When the
passenger protocol is IPv6,
settings." configure an IPv6 address for the
tunnel interface.