3Com MSR 50 Series Configuration Manual page 719

Network diagram
Figure 216 Network diagram for an IPv4 over IPv4 tunnel
Router A
S2/0
2.1.1 .1/24
Tunnel1
Eth1/0 10.1.2.1 /24
10.1 .1.1/24
IPv4
Group 1
Configuration procedure
Configuration on Router A
■
# Configure an IPv4 address for Ethernet1/0.
<RouterA> system-view
[RouterA] interface ethernet 1/0
[RouterA-Ethernet1/0] ip address 10.1.1.1 255.255.255.0
[RouterA-Ethernet1/0] quit
# Configure an IPv4 address for Serial2/0 (the physical interface of the tunnel).
[RouterA] interface serial 2/0
[RouterA-Serial2/0] ip address 2.1.1.1 255.255.255.0
[RouterA-Serial2/0] quit
# Create the interface tunnel 1.
[RouterA] interface tunnel 1
# Configure an IPv4 address for the interface tunnel 1.
[RouterA-Tunnel1] ip address 10.1.2.1 255.255.255.0
# Configure the tunnel encapsulation mode.
[RouterA-Tunnel1] tunnel-protocol ipv4-ipv4
# Configure a source address for the interface tunnel 1 (IP address of Serial2/0).
[RouterA-Tunnel1] source 2.1.1.1
# Configure a destination address for the interface tunnel 1 (IP address of Serial
2/1 of Router B).
[RouterA-Tunnel1] destination 3.1.1.1
[RouterA-Tunnel1] quit
# Configure a static route from Router A through the interface tunnel 1 to Group
2.
[RouterA] ip route-static 10.1.3.0 255.255.255.0 tunnel 1
Configuring IPv4 over IPv4 Tunnel
S2/1
3 .1.1.1/24
IPv4 netwok
Tunnel 2
10 .1.2.2/24
Router B
Eth1/0
10.1.3 .1/24
IPv4
Group 2
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