Cisco SGE2000 - - Gigabit Switch Administration Manual page 200

Configuring IP Information
IP Addressing
Cisco Small Business SFE/SGE Managed Switches Administration Guide
The main improvement IPv6 presents is address size, increasing from 32-bit to
128-bit addresses. The larger address size introduces greater flexibility in
assigning IP addresses.
IPv6 addresses are normally written as eight groups of four hexadecimal digits, for
example FE80:0000:9C00:876A:130B. The abbreviated form is also acceptable,
where a group of zeroes can be left out: FE80:9C0:876A:130B.
For IPv4-only nodes to communicate with IPv6 nodes, an intermediary transition
mechanism is required. The transition mechanism enables IPv6-only hosts to
reach IPv4 services and to allow isolated IPv6 hosts and networks to reach the
IPv6 Internet over the IPv4 infrastructure.
The tunneling mechanism implemented is ISATAP. This protocol treats the IPv4
network as a virtual IPv6 local link, with mappings from each IPv4 address to a link-
local IPv6 address.
The switch detects IPv6 frames by the IPv6 ether-type. The switch then can
assign the frame to a specific VLAN as defined by the user.
The IPv6 Configuration section contains the following topics:
•
Defining IPv6 Interface
•
Defining Default Gateway
•
Configuring ISATAP Tunnels
•
Viewing IPv6 Neighbors Information
•
Viewing IPv6 Routes Table
Defining IPv6 Interface
The IPv6 Interface Page provides parameters for defining IPv6 interfaces.
To define IPv6 interfaces:
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