Configuring The Ipv6 Wan Connection - Cisco Small Business Pro SA 520W Administration Manual

Networking
Configuring IPv6 Addressing
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Cisco SA 500 Series Security Appliances Administration Guide

Configuring the IPv6 WAN Connection

By default, when you enable IPv6 mode, your security appliance is configured to
be a DHCPv6 client of the ISP, with stateless autoconfiguration. If your ISP
assigned a static IPv6 address, or if you need to change the DHCP
autoconfiguration mode, configure the settings on this page.
Click Networking on the menu bar, and then click IPv6 > IPv6 WAN Config in the
navigation tree.
The IPv6 WAN Configuration page appears.
In the Internet(IPv6) Address area, choose Static IPv6 if your service provider
assigned a fixed (static or permanent) IP address. If you were not assigned a static
IP address, choose DHCPv6.
If you are configuring a static address, enter the following information in the Static
IP Address area of the page.
• IPv6 Address: Enter the static IP address that was provided by your Service
Provider.
• IPv6 Prefix Length: The IPv6 network (subnet) is identified by the initial bits
of the address called the prefix. All hosts in the network have the identical
initial bits for their IPv6 address. Enter the number of common initial bits in
the network's addresses. The default prefix length is 64.
• Default IPv6 Gateway: Enter the IPv6 address of the gateway for your ISP.
This is usually provided by the ISP or your network administrator.
• Primary DNS Server and Secondary DNS Server: Enter a valid IP address
of a primary DNS Server and optionally a secondary DNS Server.
If you need to change the DHCPv6 autoconfiguration mode, choose the mode in
the DHCPv6 area of the page:
• Stateless Address Auto Configuration: If you choose this option, the
security appliance can generate its own addresses using a combination of
locally available information and information advertised by routers.
• Stateful Address Auto Configuration: If you choose this option, the security
appliance connects to the DHCPv6 server at the ISP to obtain a leased
address.
Click Apply to save your settings, or click Reset to revert to the saved settings.
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