Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 69)

Brocade 6910 Ethernet Access Switch Configuration Guide 19
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Basic Configuration
2
Address for Multi-segment Network — To generate an IPv6 address that can be used in a network
containing more than one subnet, the switch can be configured to automatically generate a unique
host address based on the local subnet address prefix received in router advertisement messages.
(DHCP for IPv6 will also be supported in future software releases.)
To dynamically generate an IPv6 host address for the switch, complete the following steps:
1. From the Global Configuration mode prompt, type “interface vlan 1” to access the
interface-configuration mode. Press <Enter>.
2. From the interface prompt, type “ipv6 address autoconfig” and press <Enter>.
3. Type “ipv6 enable” and press <Enter> to enable IPv6 on an interface that has not been
configured with an explicit IPv6 address.
Console(config)#interface vlan 1
Console(config-if)#ipv6 address autoconfig
Console(config-if)#ipv6 enable
Console(config-if)#end
Console#show ipv6 interface
VLAN 1 is up
IPv6 is enabled.
Link-local address:
FE80::260:3EFF:FE11:6700/64
Global unicast address(es):
2001:DB8:2222:7272::/64, subnet is 2001:DB8:2222:7272::/64
Joined group address(es):
FF02::1:FF00:0
FF02::1:FF11:6700
FF02::1
IPv6 link MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 3.
ND retransmit interval is 1000 milliseconds
ND advertised retransmit interval is 0 milliseconds
ND reachable time is 30000 milliseconds
ND advertised reachable time is 0 milliseconds
Console#
Downloading Configuration File Referenced by DHCP Server
Information passed on to the switch from a DHCP server may also include a configuration file to be
downloaded and the TFTP servers where that file can be accessed. If the Factory Default
Configuration file is used to provision the switch at startup, in addition to requesting IP
configuration settings from the DHCP server, it will also ask for the name of a bootup configuration
file and TFTP servers where that file is stored.
If the switch receives information that allows it to download the remote bootup file, it will save this
file to a local buffer, and then restart the provision process.
Note the following DHCP client behavior:
• The bootup configuration file received from a TFTP server is stored on the switch with the
original file name. If this file name already exists in the switch, the file is overwritten.
• If the name of the bootup configuration file is the same as the Factory Default Configuration
file, the download procedure will be terminated, and the switch will not send any further DHCP
client requests.
• If the switch fails to download the bootup configuration file based on information passed by the
DHCP server, it will not send any further DHCP client requests.