7
Configuring IPv6
IPv6 is the next generation of the Internet Protocol. With 128-bit addresses, versus 32-bit addresses for
IPv4, IPv6 solves the address depletion issues seen with IPv4 and removes the requirement for Network
Address Translation (NAT), which is used in IPv4 networks to reduce the number of globally unique IP
addresses required for a given network. Its aggregate addresses can dramatically reduce the size of the
global routing table through well known address combinations. Security is more integrated and network
configuration is simplified yet more flexible.
IPv6 can coexist with IPv4. As with IPv4, IPv6 routing can be enabled on physical and VLAN interfaces.
Each Layer 3 routing interface can be used for IPv4, IPv6, or both. IP protocols running over Layer 3 (for
example, UDP and TCP) do not change with IPv6. For this reason, a single CPU stack is used for
transport of both IPv4 and IPv6, and a single sockets interface provides access to both. Routing
protocols are capable of computing routes for one or both IP versions.
Note
CLI commands are not available for all the IPv6 pages.
Global Configuration
Use the IPV6 Network Connectivity page to configure and view IPv6 information on the network
interface. The network interface is the logical interface that allows remote management of the device
via any of the front-panel switch ports. To enable management of the device over an IPv6 network by
using a web browser,
SNMP (Simple Network Management Protocol)
, Telnet, or SSH, you must first
configure the device with the appropriate IPv6 information. The configuration parameters associated
with the network interface do not affect the configuration of the front-panel ports through which traffic
is switched or routed.
To display this page, click
System
>
Connectivity
>
IPv6
in the navigation menu.
Table 298: IPv6 Network Connectivity Fields
Field
Description
IPv6 Mode
Enables or disables the IPv6 administrative mode on the network interface.
Network Configuration
Protocol
Specify whether the device should attempt to acquire network information from
a DHCPv6 server. Selecting None disables the DHCPv6 client on the network
interface.
ExtremeSwitching 200 Series: Administration Guide
296