Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 471)

Multi-Service IronWare Routing Configuration Guide 443
53-1003033-02
Configuring IPv6 neighbor discovery
For example, to enable a device to send the ICMPv6 Packet Too Big error messages for the IPv6
packets sent to multicast address destination, enter the following command:
Brocade(config)#ipv6 icmp packet-too-big-for-multicast
Syntax: [no] ipv6 icmp packet-too-big-for-multicast
Use the show running-configuration command to see if this is enabled or disabled. Use the no
parameter in front of the ipv6 icmp packet-too-big-for-multicast command to disable the sending of
ICMPv6 Packet Too Big error message for the multicast packets.
Enabling ICMP error messages for CES/CER devices
By default, the Brocade CES/CER devices do not generate error message for many of the ICMPv6
error cases. You can enable or disable a device to generate error message in all the error
conditions using the ipv6 icmp generate-error-message command from the global config mode.
NOTE
Enabling this command enables all the IPv6 packets will be sent to the CPU.
This command is available only on Brocade CES/CER series devices.
For example, to enable a device to generate error message in all the error conditions, enter the
following command:
Brocade(config)#ipv6 icmp generate-error-message
Syntax: [no] ipv6 icmp generate-error-message
Use the show running-configuration command to see if this is enabled or disabled. Use the no
parameter in front of the ipv6 icmp generate-error-message command to disable device to
generate error message in all the error conditions.
Configuring IPv6 neighbor discovery
The neighbor discovery feature for IPv6 uses IPv6 ICMP messages to do the following:
• Determine the link-layer address of a neighbor on the same link.
• Verify that a neighbor is reachable.
• Track neighbor devices.
An IPv6 host is required to listen for and recognize the following addresses, which identify this host:
• Link-local address.
• Assigned unicast address.
• Loopback address.
• All-nodes multicast address.
• Solicited-node multicast address.
• Multicast address to all other groups to which it belongs.
You can adjust the following IPv6 neighbor discovery features:
• Neighbor solicitation messages for duplicate address detection.