F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices VPN Configuration Guide-6PW100

5
98BRecommended configuration procedure
Ste
p
Remarks
1. 671HCreating a GRE over IPv4
tunnel interface
Required.
Create a tunnel interface and configure GRE over IPv4 tunnel related
parameters.
2. Configuring a route for
packet forwarding through
the tunnel
Optional.
Each end of the tunnel must have a route (static or dynamic) for packet
forwarding through the tunnel to the other end. This makes sure GRE
encapsulated packets can be forwarded normally.
For more information about routing configuration, see Network
Management Configuration Guide.
IMPORTANT:
The destination IP address of the static route configured on the tunnel interface
cannot be in the same subnet as the IP address of the tunnel interface.
99BCreating a GRE over IPv4 tunnel interface
1. Select VPN > GRE > GRE from the navigation tree to enter the GRE over IPv4 tunnel interface
management page.
Figure 8 GRE over IPv4 tunnel management page
2. Click Add to add a GRE over IPv4 tunnel interface.