Configuration Example - 3Com MSR 50 Series Configuration Manual

722 C 49: T
HAPTER UNNELING
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Configuration Example

C
ONFIGURATION
To do...
Create a tunnel interface and
enter tunnel interface view
Configure an IPv4 address for
the tunnel interface
Configure the tunnel type
Configure the source address
or interface for the tunnel
interface
Configure the destination
address for the tunnel
interface
Configure the MTU of IPv6
packets sent over a tunnel
interface
For the configuration of the MTU of IPv6 packets sent over a tunnel interface, refer
to the ipv6 mtu command in
CAUTION:
If the addresses of the tunnel interfaces at the two ends of a tunnel are not in
■
the same subnet, a forwarding route through the tunnel to the peer must be
configured so that the encapsulated packet can be forwarded normally. You
can configure static or dynamic routes. For the detailed configuration, refer to
"Static Routing and Dynamic Routing" on page
interfaces using the same encapsulation protocol must have different source
and destination addresses.
If the tunnel interface is the source interface, the source address is the primary
■
IP address of the source interface.
Before configuring dynamic routes, you must enable the dynamic routing
■
protocol on the tunnel interfaces at both ends of the tunnel. Such a route must
be configured at both ends of the tunnel. For related configurations, refer to
"Static Routing and Dynamic Routing" on page
Network requirements
The two subnets Group 1 and Group 2 of the private network running IPv4 are
interconnected over the IPv6 network by using an IPv4 over IPv6 tunnel between
Router A and Router B.
Use the command...
interface tunnel number
ip address ip-address { mask |
mask-length } [ sub ]
tunnel-protocol ipv4-ipv6
source { ipv6-address |
interface-type
interface-number }
destination ipv6-address
ipv6 mtu mtu-size
"Configuring the Interface MTU" on page
Remarks
Required
By default, there is no tunnel
interface on the device.
Required
By default, no IPv4 address is
configured for the tunnel
interface.
Optional
By default, the tunnel is a GRE
tunnel. The same tunnel type
should be configured at both
ends of the tunnel. Otherwise,
packet delivery will fail.
Required
By default, no source address
or interface is configured for
the tunnel.
Required
By default, no destination
address is configured for the
tunnel.
Optional
The default value varies with
devices.
670.
817. Two or more tunnel
817.