Accton Technology ES4548D Switch User Manual


 
Setting an IP Address
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Current Address Table
IPv6 Address – IPv6 address assigned to this interface.
In addition to the unicast addresses assigned to an interface, a node is required to
join the all-nodes multicast addresses FF01::1 and FF02::1 for all IPv6 nodes
within scope 1 (interface-local) and scope 2 (link-local), respectively.
FF01::1/16 is the transient node-local multicast address for all attached IPv6
nodes, and FF02::1/16 is the link-local multicast address for all attached IPv6
nodes. The node-local multicast address is only used for loopback transmission of
multicast traffic. Link-local multicast addresses cover the same types as used by
link-local unicast addresses, including all nodes (FF02::1), all routers (FF02::2),
and solicited nodes (FF02::1:FFXX:XXXX) as described below.
A node is also required to compute and join the associated solicited-node multicast
addresses for every unicast and anycast address it is assigned. IPv6 addresses
that differ only in the high-order bits, e.g. due to multiple high-order prefixes
associated with different aggregations, will map to the same solicited-node
address, thereby reducing the number of multicast addresses a node must join. In
this example, FF02::1:FF90:0/104 is the solicited-node multicast address which is
formed by taking the low-order 24 bits of the address and appending those bits to
the prefix.
Note that the solicited-node multicast address (link-local scope FF02) is used to
resolve the MAC addresses for neighbor nodes since IPv6 does not support the
broadcast method used by the Address Resolution Protocol in IPv4.
Prefix Length – This field includes the prefix length, address type (Global,
Link-local, Multicast), and configuration method if manually set.
Address Type – Global, Link-local or Multicast.