C
HAPTER
2
| Initial Switch Configuration
Basic Configuration
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OBTAINING AN IPV6 ADDRESS
Link Local Address — There are several ways to configure IPv6 addresses.
The simplest method is to automatically generate a “link local” address
(identified by an address prefix of FE80). This address type makes the
switch accessible over IPv6 for all devices attached to the same local
subnet.
To generate an IPv6 link local 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. Type “ipv6 enable” and press <Enter>.
ES-3052G(config)#interface vlan 1
ES-3052G(config-if)#ipv6 enable
ES-3052G(config-if)#end
ES-3052G#show ipv6 interface
VLAN 1 is up
IPv6 is enabled.
Link-local address:
FE80::2E0:CFF:FE00:FD/64
Global unicast address(es):
(None)
Joined group address(es):
FF02::1:FF00:FD
FF02::1
IPv6 link MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 3.
ND retransmit interval is 1000 milliseconds
ES-3052G#
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.
ES-3052G(config)#interface vlan 1
ES-3052G(config-if)#ipv6 address autoconfig
ES-3052G(config-if)#ipv6 enable
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