Brocade Communications Systems 6650 manual IPv6 address types

5 IPv6 addressing overview

•The hexadecimal letters in IPv6 addresses are not case-sensitive

As shown in Figure 9, the IPv6 network prefix is composed of the left-most bits of the address. As with an IPv4 address, you can specify the IPv6 prefix using the <prefix>/<prefix-length>format, where the following applies.

The <prefix> parameter is specified as 16-bit hexadecimal values separated by a colon.

The <prefix-length>parameter is specified as a decimal value that indicates the left-most bits of the IPv6 address.

The following is an example of an IPv6 prefix. 2001:DB8:49EA:D088::/64

IPv6 address types

As with IPv4 addresses, you can assign multiple IPv6 addresses to a switch interface. Table 22 presents the three major types of IPv6 addresses that you can assign to a switch interface.

A major difference between IPv4 and IPv6 addresses is that IPv6 addresses support scope, which describes the topology in which the address may be used as a unique identifier for an interface or set of interfaces.

Unicast and multicast addresses support scoping as follows:

•Unicast addresses support two types of scope: global scope and local scope. In turn, local scope supports site-local addresses and link-local addresses. Table 22 describes global, site-local, and link-local addresses and the topologies in which they are used.

•Multicast addresses support a scope field, which Table 22 describes.

102	Brocade ICX 6650 Administration Guide
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