3Com MSR 50 Series Configuration Manual page 705

To do...
Configure an
IPv6 address for
the tunnel
interface
Configure an automatic
IPv4-compatible IPv6 tunnel
Configure a source address or
interface for the tunnel
Configure the MTU of IPv6
packets sent over the tunnel
interface
n
For the configuration of the MTU of IPv6 packets sent over a tunnel interface, refer
to the ipv6 mtu command in
c
CAUTION:
Only one automatic tunnel can be created at the same tunnel source.
■
No destination address needs to be configured for an automatic
■
IPv4-compatible IPv6 tunnel.
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
The automatic tunnel interfaces encapsulated with the same protocol cannot
■
share the same source IP address.
Automatic tunnels do not support dynamic routing.
■
When you configure a static route, you need to configure a route to the
■
destination address (the destination IP address of the packet, instead of the
IPv4 address of the tunnel destination) and set the next-hop to the tunnel
interface number or network address at the local end of the tunnel. Such a
route must be configured at both ends of the tunnel.
Configuring Automatic IPv4-Compatible IPv6 Tunnel
Use the command...
Configure an ipv6 address { ipv6-address
IPv6 global prefix-length |
unicast address ipv6-address/prefix-length }
or site-local
ipv6 address
address
ipv6-address/prefix-length
eui-64
Configure an ipv6 address auto
IPv6 link-local link-local
address
ipv6 address ipv6-address
link-local
tunnel-protocol ipv6-ipv4
auto-tunnel
source { ip-address |
interface-type
interface-number }
ipv6 mtu mtu-size
"Configuring the Interface MTU" on page
Remarks
Required
Use either command.
By default, no IPv6 global
unicast address or site-local
address is configured for the
tunnel interface.
Optional
By default, a link-local
address will automatically be
generated when an IPv6
global unicast or site-local
address is configured for the
interface.
Required
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.
Optional
The default value varies with
devices.
670.
817.
705