User's Manual

Networking
Configuring the WAN
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 103
4
- 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 IPv6
WAN connection in the following fields:
IPv6 Address: Enter the static IP address that was provided by your ISP.
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 primary DNS Server.
Secondary DNS Server (Optional): Optionally, enter a valid IP address
of the secondary DNS Server.
STEP 5 Click OK to save your settings.
STEP 6 Click Save to apply your settings.
NOTE Next steps:
• To configure another ISP link, click Add. See Configuring the Secondary
WAN, page 104.
• To create multiple PPPoE profiles, go to the Networking -> PPPoE Profile
page. See Configuring the PPPoE Profiles, page 111.
• To determine how the two ISP links are used, you first need to add a
secondary WAN port, and then configure the WAN redundancy settings.
See Configuring the WAN Redundancy, page 112.
• If you are having problems with your WAN connection, see the Internet
Connection, page 333 in Troubleshooting, page 333.