352
[RouterA-Tunnel0] ip address 10.1.2.1 255.255.255.0
# Configure the source address of the tunnel interface as the IP address of GigabitEthernet
1/0/2 on Router A.
[RouterA-Tunnel0] source 1.1.1.1
# Configure the destination address of the tunnel interface as the IP address of GigabitEthernet
1/0/2 on Router B.
[RouterA-Tunnel0] destination 2.2.2.2
[RouterA-Tunnel0] quit
# Configure a static route from Router A through the tunnel interface to Group 2.
[RouterA] ip route-static 10.1.3.0 255.255.255.0 tunnel 0
2. Configure Router B:
# Create tunnel interface Tunnel 0 and specify the tunnel mode as GRE/IPv4.
<RouterB> system-view
[RouterB] interface tunnel 0 mode gre
# Configure an IP address for the tunnel interface.
[RouterB-Tunnel0] ip address 10.1.2.2 255.255.255.0
# Configure the source address of the tunnel interface as the IP address of interface
GigabitEthernet 1/0/2 on Router B.
[RouterB-Tunnel0] source 2.2.2.2
# Configure the destination address of the tunnel interface as the IP address of the interface
GigabitEthernet 1/0/2 on Router A.
[RouterB-Tunnel0] destination 1.1.1.1
[RouterB-Tunnel0] quit
# Configure a static route from Router B through the tunnel interface to Group 1.
[RouterB] ip route-static 10.1.1.0 255.255.255.0 tunnel 0
Verifying the configuration
# Display tunnel interface information on Router A.
[RouterA] display interface tunnel 0
Tunnel0
Current state: UP
Line protocol state: UP
Description: Tunnel0 Interface
Bandwidth: 64kbps
Maximum Transmit Unit: 1476
Internet Address is 10.1.2.1/24 Primary
Tunnel source 1.1.1.1, destination 2.2.2.2
Tunnel keepalive disabled
Tunnel TTL 255
Tunnel protocol/transport GRE/IP
GRE key disabled
Checksumming of GRE packets disabled
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last clearing of counters: Never
Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec
Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec
Input: 0 packets, 0 bytes, 0 drops