H3C Technologies H3C SecPath F1000-E - Manual (Page 19)

7
Network requirements
As shown in Figure 10 , Device A and Device B are interconnected through the Internet. Two private IP
subnets Group 1 and Group 2 are interconnected through a GRE tunnel between Device A and Device
B.
Figure 10 Network diagram
NOTE:
Before the configuration, make sure that Device A and Device B have IP connectivity to each other.
Configuring Device A
# Configure an IPv4 address for each interface and assign the interfaces to security zones. (Details
not shown.)
# Create a GRE tunnel interface.
• Select VPN > GRE > GRE from the navigation tree and then click Add to perform the configurations
shown in
Figure 11 .
Figure 11 Creating a GRE tunnel interface
• Enter 0 in the Tunnel Interface field.
• Enter IP address/mask 10.1.2.1/24.
• Select Trust from the Zone list. (Select a security zone according to your network configuration.)
• Enter the source end IP address 1.1.1.1, the IP address of GigabitEthernet 0/1.
• Enter the destination end IP address 2.2.2.2, the IP address of GigabitEthernet 0/1 on Device B.