LevelOne GTL-2691 - Manual (Page 1439)

C HAPTER 48 | IP Interface Commands
IPv6 to IPv4 Tunnels
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IP V 6 TO IP V 4 T UNNELS
This switch supports connection between isolated IPv6 nodes over IPv4
networks using manually configured tunnels (RFC 2893), as well as the
connection of isolated IPv6 domains over IPv4 clouds without explicit
tunnel configuration (RFC 3056).
C OMMAND U SAGE
To create a manually configured or automatically configured tunnel, follow
these steps:
1. Configure a VLAN with the vlan command.
2. Assign the ports which will use this VLAN for local services, and those
which will form the entry point for the IPv6 over IPv4 tunnel (using the
switchport allowed vlan command.
3. Assign an IPv4 address to the VLAN to serve as the source (or local end
point) of the tunnel using the
ip address command.
4. Create an IPv6 over IPv4 tunnel using the interface tunnel command.
5. Set the tunnel mode to “configured” for host-to-router or router-to-
router connections, or “6to4” for router-to-host or host-to-host
connections using the tunnel mode ipv6ip command.
6. For “configured” tunnel mode, specify the IPv4 address of the far end of
the tunnel using the
tunnel destination command.
Table 200: IPv6 to IPv4 Tunnelling Commands
Command Function Mode
interface tunnel Configures a tunnel interface and enters tunnel
configuration mode
GC
ipv6 address Configures an IPv6 global unicast address, and
enables IPv6 on an interface
IC (tunnel)
ipv6 address link-local Configures an IPv6 link-local address for an interface
and enables IPv6 on the interface
IC (tunnel)
ipv6 address eui-64 Configures an IPv6 global unicast address for an
interface using an EUI-64 interface ID in the low order
64 bits, and enables IPv6 on the interface
IC (tunnel)
tunnel destination *
* The tunnel destination only applies to manually configured tunneling (RFC 2893).
Configures the IPv4 address of a tunnel destination IC (tunnel)
tunnel mode ipv6ip Configures the tunnel mode to manual configuration
or 6-to-4 automatic tunneling
IC (tunnel)
tunnel source vlan Sets the VLAN to which a tunnel source is assigned IC (tunnel)
tunnel ttl Configures the TTL value in the IPv4 header of a
packet used for tunneling IPv6 traffic
IC (tunnel)
show ipv6 tunnel Displays the status and configuration settings for all
IPv6 over IPv4 tunnels
PE