Tunneling Configuration Task List; Configuring A Tunnel Interface; Configuration Prerequisites; Configuration Guidelines - HP 10500 Series Configuration Manual

Tunneling configuration task list

Complete the following tasks to configure the tunneling feature:
Task

Configuring a tunnel interface

Configuring an
IPv6 over IPv4
tunnel
Configuring an IPv4 over IPv4 tunnel
Configuring an IPv4 over IPv6 tunnel
Configuring an IPv6 over IPv6 tunnel
Configuring a tunnel interface

Configuration prerequisites

Configure a Layer 3 virtual tunnel interface on each device on a tunnel so that devices at both ends can
send, identify, and process packets from the tunnel.
Before configuring the tunnel interface, you first need to create a tunnel-type service loopback group and
add the unused layer 2 Ethernet interfaces on the device into the service loopback group.

Configuration guidelines

Follow these guidelines when you configure a tunnel interface:
Switches cannot directly route a tunneled packet based on its destination address. The packet is sent
•
to a tunnel-type service loopback group, which then delivers the packet to the forwarding module
for Layer 3 forwarding. Therefore, you must configure a tunnel-type service loopback group.
Otherwise, the tunnel interface will fail to forward and receive packets. For information about
service loopback group, see Layer 2—LAN Switching Configuration Guide.
• When an active/standby switchover occurs or the standby card is removed, the tunnel interfaces
configured on the active or standby card still exist. To delete a tunnel interface, use the undo
interface tunnel command.
The tunnel bandwidth command sets a bandwidth value for dynamical routing protocols to
•
calculate the cost of the tunnel and does not affect the actual interface bandwidth. You can
determine the value according to the bandwidth of the actual output interface.
The switch fragments IP unicast packets larger than the MTU on the tunnel interface and sends an
•
ICMP error packet to the source device to inform it to modify its MTU.
The switch fragments IPv6 unicast packets larger than the MTU on the tunnel interface and sends an
•
ICMPv6 error packet to the source device to inform it to modify its MTU. The minimum MTU value
in the ICMPv6 error packet is 1280 bytes, and you must configure a MTU no smaller than 1280
bytes for the tunnel (such as an IPv6 over IPv4 tunnel or an IPv6 over IPv6 tunnel).
Configuring an IPv6 manual tunnel
Configuring a 6to4 tunnel
Configuring an ISATAP tunnel
160
Remarks
Required.
Optional.
Use one as needed.
Optional.
Optional.
Optional.