Configuration Guide User guide

378 FastIron Configuration Guide
53-1002494-02
IPv6 over IPv4 tunnels
The ipv6 enable command enables the tunnel. Alternatively, you could specify an IPv6 address,
which would also enable the tunnel.
Syntax: ipv6 address <ipv6-prefix>/<prefix-length> [eui-64]
The ipv6 address command enables the tunnel. Alternatively, you could enter ipv6 enable, which
would also enable the tunnel.
Specify the <ipv6-prefix> parameter in hexadecimal format using 16-bit values between colons as
documented in RFC 2373.
Specify the <prefix-length> parameter as a decimal value. A slash mark (/) must follow the
<ipv6-prefix> parameter and precede the <prefix-length> parameter. The eui-64 keyword
configures the global address with an EUI-64 interface ID in the low-order 64 bits. The interface ID
is automatically constructed in IEEE EUI-64 format using the interface’s MAC address.
Clearing IPv6 tunnel statistics
You can clear statistics (reset all fields to zero) for all IPv6 tunnels or for a specific tunnel interface.
For example, to clear statistics for tunnel 1, enter the following command at the Privileged EXEC
level or any of the Config levels of the CLI.
Brocade#clear ipv6 tunnel 1
To clear statistics for all IPv6 tunnels, enter the following command.
Brocade#clear ipv6 tunnel
Syntax: clear ipv6 tunnel [<number>]
The <number> parameter specifies the tunnel number.
Displaying IPv6 tunnel information
Use the commands in this section to display the configuration, status, and counters associated
with IPv6 tunnels.
Displaying a summary of tunnel information
To display a summary of tunnel information, enter the following command at any level of the CLI.
Syntax: show ipv6 tunnel
This display shows the following information.
Brocade#show ipv6 tunnel
IP6 Tunnels
Tunnel Mode Packet Received Packet Sent
1 configured 0 0
2 configured 0 22419