Configuring a p2mp gre tunnel, Configuration prerequisites, Configuration task list – H3C Technologies H3C SecPath F1000-E User Manual
Page 751: Configuring a p2mp gre tunnel interface
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Configuring a P2MP GRE Tunnel
Configuration Prerequisites
On each of the peer devices, configure an IP address for the interface to be used as the source interface
of the tunnel interface (which can be a, for example, VLAN interface, GigabitEthernet interface, or
loopback interface), and make sure that this interface can communicate with the interface used as the
source interface of the tunnel interface on the peer device normally.
Configuration Task List
Perform the tasks in
to configure a P2MP GRE tunnel.
Table 3 P2MP GRE tunnel configuration task list
Task Remarks
Required
Create a P2MP GRE tunnel interface and configure the related
parameters.
Configuring a route for packet
forwarding through the tunnel
Required
Each end of the tunnel must have a route (static or dynamic) for packet
forwarding through the tunnel to the other end, so that GRE
encapsulated packets can be forwarded normally.
When configuring a route through the tunnel, you can configure a
static route, using the address of the network segment that the original
packet is destined for as its destination address and the address of the
peer tunnel interface as its next hop. Or, you can enable a dynamic
routing protocol on both the tunnel interface and the interface
connecting the private network, so that the dynamic routing protocol
can establish a routing entry that instructs the device to forward
packets through the tunnel.
See Static Route Configuration and other parts about routing protocol
configuration for more information.
IMPORTANT:
It is not allowed to set up a static route whose destination address is
in the subnet of the tunnel interface.
Displaying Information about
Established P2MP GRE Tunnels
Optional
Configuring a P2MP GRE Tunnel Interface
Select VPN > GRE > P2MP from the navigation tree to enter the P2MP GRE tunnel interface
management page, as shown in
. Then, click Add to add a P2MP GRE tunnel interface, as
shown in
.