LevelOne GEL-1061 User Manual page 458

Chapter 17
| IP Configuration
Setting the Switch's IP Address (IP Version 6)
have the "other stateful configuration" flag set, the switch will attempt to
acquire other non-address configuration information (such as a default
gateway).
If auto-configuration is not selected, then an address must be manually
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configured using the Add IPv6 Address page described below.
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Enable IPv6 Explicitly – Enables IPv6 on an interface and assigns it a link-local
address. Note that when an explicit address is assigned to an interface, IPv6 is
automatically enabled, and cannot be disabled until all assigned addresses
have been removed. (Default: Disabled)
Disabling this parameter does not disable IPv6 for an interface that has been
explicitly configured with an IPv6 address.
◆
MTU – Sets the size of the maximum transmission unit (MTU) for IPv6 packets
sent on an interface. (Range: 1280-65535 bytes; Default: 1500 bytes)
The maximum value set in this field cannot exceed the MTU of the physical
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interface, which is currently fixed at 1500 bytes.
If a non-default value is configured, an MTU option is included in the router
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advertisements sent from this device. This option is provided to ensure that
all nodes on a link use the same MTU value in cases where the link MTU is
not otherwise well known.
■ IPv6 routers do not fragment IPv6 packets forwarded from other routers.
However, traffic originating from an end-station connected to an IPv6
router may be fragmented.
■ All devices on the same physical medium must use the same MTU in order
to operate correctly.
■ IPv6 must be enabled on an interface before the MTU can be set. If an IPv6
address has not been assigned to the switch, "N/A" is displayed in the MTU
field.
◆
ND DAD Attempts – The number of consecutive neighbor solicitation
messages sent on an interface during duplicate address detection.
(Range: 0-600, Default: 3)
Configuring a value of 0 disables duplicate address detection.
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Duplicate address detection determines if a new unicast IPv6 address
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already exists on the network before it is assigned to an interface.
Duplicate address detection is stopped on any interface that has been
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suspended (see
interface is suspended, all unicast IPv6 addresses assigned to that interface
are placed in a "pending" state. Duplicate address detection is
automatically restarted when the interface is administratively re-activated.
An interface that is re-activated restarts duplicate address detection for all
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unicast IPv6 addresses on the interface. While duplicate address detection
is performed on the interface's link-local address, the other IPv6 addresses
"Configuring VLAN Groups" on page
– 458 –
142). While an