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Networking
Configuring IPv6 Addressing
STEP 4
NOTE
Cisco SA500 Series Security Appliances Administration Guide
•
DHCP Mode: Choose the appropriate option for your configuration:
-
Stateless: Choose this option to allow the security appliance to
autoconfigure the IPv6 LAN hosts by using ICMPv6 router discovery
messages. There are no managed addresses to serve the LAN nodes.
For the stateless mode, you also need to configure the Router
NOTE
Advertisement Daemon (RADVD). See
(RADVD), page
-
Stateful: Choose this option to allow the IPv6 LAN host to rely on an
external DHCPv6 server to provide required configuration settings.
•
Domain Name (optional): Enter a domain name for the DHCPv6 server.
•
Server Preference: Enter a value from 0 to 255 to indicate the preference
level for this DHCP server. DHCPv6 clients will pick up the DHCPv6 server
which has highest preference value. The default is 255.
•
DNS Servers: Choose one of the following options:
-
Use DNS Proxy: Check this box to enable DNS proxy on this LAN. The
security appliance will act as a proxy for all DNS requests and will
communicate with the DNS servers of the ISP (as configured in the WAN
settings page).
-
Use DNS from ISP: Check this box allows the ISP to define the DNS
servers (primary/secondary) for the LAN DHCP client.
-
Use below: Check this box to use the Primary DNS Server and the
Secondary DNS Server that you enter in the fields below.
•
Lease/Rebind Time: Enter the number of seconds that IP addresses are
leased to clients. The default is 86400, which is 24 hours.
Click Apply to save your settings.
Next steps:
•
Required for stateless autoconfiguration: If you chose stateless
autoconfiguration mode, click IPv6 > Router Advertisement to configure
the Router Advertisement Deamon (RADVD). For more information, see
Router Advertisement Daemon (RADVD), page
•
If you want to configure the LAN address pools, click IPv6 > IPv6 Address
Pools. For more information, see
88.
IPv6 LAN Address Pools, page
Router Advertisement Daemon
88.
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82.
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