Cisco Small Business RV320, Administration Manual

Page: 53 / 122

DHCP
Router Advertisement (IPv6)
Cisco RV320/RV325 Administration Guide 53
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• RA Flags —Determines whether or not hosts can use DHCPv6 to obtain IP
addresses and related information. The options are:
- Managed —Hosts use an administered, stateful configuration protocol
(DHCPv6) to obtain stateful addresses and other information through
DHCPv6.
- Other —Uses an administered, stateful configuration protocol (DHCPv6)
to obtain other, non-address information, such as DNS server addresses.
• Router Preference—High, Medium , or Low preference metric is used in a
network topology where multi-homed hosts have access to multiple
routers. This metric helps a host to choose an appropriate router. If two
routers are reachable, the one with the higher preference is chosen. These
values are ignored by hosts that do not implement router preference. The
default setting is High.
• MTU— Size of the largest packet that can be sent over the network. The
MTU (Maximum Transmission Unit) is used in Router Advertisement
messages to ensure that all nodes on the network use the same MTU value
when the LAN MTU is not well-known. The default setting is1500 bytes,
which is the standard value for Ethernet networks. For PPPoE connections,
the standard is 1492 bytes. Unless your ISP requires a different setting, this
setting should not be changed.
• Router Lifetime— Time in seconds that the Router Advertisement
messages exist on the route. The default is 3600 seconds.
To add a new subnet, click Add and enter an IPv6 Address , Prefix Length , and
Lifetime .