Networking
Configuring the WAN
Cisco ISA500 Series Integrated Security Appliances Administration Guide 124
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-Use the following MAC address: If your ISP requires MAC authentication
and another MAC address has been previously registered with your ISP,
choose this option and enter the MAC address that your ISP requires for
this connection.
•MAC Address: Enter the MAC address, for example 01:23:45:67:89:a b.
•Zone: Choose the default WAN zone or an untrusted zone for the primary
WAN. You can click the Create Zone link to view, edit, or add the zones on
the security appliance.
For IPv4/IPv6 routing mode, enter the following information on the IPv6 tab:
•IP Address Assignment: Choose Static IP if your ISP assigned a fixed
(static or permanent) IP address, or choose SLAAC if you were not assigned
a static IP address. By default, your security appliance is configured to be a
DHCPv6 client of the ISP, with stateless address auto-configuration
(SLAAC).
-SLAAC: SLAAC provides a convenient method to assign IP addresses to
IPv6 nodes. This method does not require any human intervention from
an IPv6 user. If you choose SLAAC, the security appliance can generate
its own addresses using a combination of locally available information
and information advertised by routers.
-Static IP: If your ISP assigned a static IPv6 address, configure the IP v6
WAN connection in the following fields:
IPv6 Address: Ent er the st atic IP a ddress that was provide d by your I SP.
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: Enter a valid IP address of the primar y DNS server.
Secondary DNS Server (Optional): Optionally, enter a valid IP address
of the secondary DNS server.