Cisco SA520-K9 Administration Guide - Page 81

Networking, Router Advertisement Daemon, RADVD, IPv6 LAN Address Pools

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Networking Configuring IPv6 Addressing 2 • 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. NOTE For the stateless mode, you also need to configure the Router Advertisement Daemon (RADVD). See Router Advertisement Daemon (RADVD), page 88. - 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. STEP 4 Click Apply to save your settings. NOTE 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 88. • If you want to configure the LAN address pools, click IPv6 > IPv6 Address Pools. For more information, see IPv6 LAN Address Pools, page 82. Cisco SA500 Series Security Appliances Administration Guide 81

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Networking
Configuring IPv6 Addressing
Cisco SA500 Series Security Appliances Administration Guide
81
2
•
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.
NOTE
For the stateless mode, you also need to configure the Router
Advertisement Daemon (RADVD). See
Router Advertisement Daemon
(RADVD), page 88
.
-
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.
STEP
4
Click
Apply
to save your settings.
NOTE
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 88
.
•
If you want to configure the LAN address pools, click
IPv6 > IPv6 Address
Pools
. For more information, see
IPv6 LAN Address Pools, page 82
.