Managing Ipv6 - Cisco SF200-24 Administration Manual

Configuring IP Information
Management and IP Interfaces
STEP 3
Cisco Small Business 200 1. 1 Series Smart Switch Administration Guide
If a dynamic IP address is retrieved from the DHCP server, select those of the
following fields that are enabled:
• Renew IP Address Now—The switch dynamic IP address can be renewed
any time after it is assigned by a DHCP server. Depending on your DHCP
server configuration, the switch might receive a new IP address after the
renewal that will cause a loss of connectivity to the web-based switch
configuration utility.
• Auto Configuration via DHCP—Displays status of auto-configuration
feature. You can configure DHCP Auto Configuration from
File Management
Click Apply. The IPv4 interface settings are defined, and the Running Configuration
file is updated.

Managing IPv6

The Internet Protocol version 6 (IPv6) is a network-layer protocol for packet-
switched internetworks. IPv6 was designed to replace IPv4, the predominantly
deployed Internet protocol.
IPv6 introduces greater flexibility in assigning IP addresses because the address
size increases from 32-bit to 128-bit addresses. IPv6 addresses are written as
eight groups of four hexadecimal digits, for example
FE80:0000:0000:0000:0000:9C00:876A:130B. The abbreviated form, in which a
group of zeroes can be left out, and replaced with '::', is also acceptable, for
example, ::-FE80::9C00:876A:130B.
IPv6 nodes require an intermediary mapping mechanism to communicate with
other IPv6 nodes over an IPv4-only network. This mechanism, called a tunnel,
enables IPv6-only hosts to reach IPv4 services, and enables isolated IPv6 hosts
and networks to reach an IPv6 node over the IPv4 infrastructure.
Tunneling uses the ISATAP mechanism. 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 Ethertype.
DHCP Auto Configuration
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Administration
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