Address Formats - Avaya ERS 8800 series Configuration Manual

IPv6 routing fundamentals
transient. The 4-bit scope field indicates the scope of the group specified in the 112-bit group
ID field. The scope options are:
• 1 - node local
• 2 - link-local
• 3 - subnet local
• 4 - admin local
• 5 - site-local
• 8 - organization-local
• B - community-local
• E - global
An example of a multicast address is: FF01:0:0:0:0:0:0:101
IPv4-Compatible Address
IPv6 nodes that need to inter operate with IPv4 nodes use the IPv4-compatible address, which
includes an IPv4 address in the low-order 32 bits. The following figure shows the format of an
IPv4-compatible address.
Figure 4: IPv4-Compatible Unicast Address Format

Address formats

The format for representing an IPv6 address is
n:n:n:n:n:n:n:n
n is the hexadecimal representation of 16 bits in the address; for example,
FF01:0:0:0:0:0:0:43
Each nonzero field must contain at least one numeral. Within a hexadecimal field; however,
leading zeros are not required.
Certain classes of IPv6 addresses commonly include multiple contiguous fields containing
hexadecimal 0. The following sample address includes five contiguous fields containing zeroes
with a double colon (::):
FF01::43
20 Configuration — IPv6 Routing November 2010