TL-WDR4900 N900 Wireless Dual Band Gigabit Router
MTU Size - The normal MTU (Maximum Transmission Unit) value for most Ethernet networks is 1500 Bytes. For some ISPs, you may need to modify the MTU. But this is rarely required, and should not be done unless you are sure it is necessary for your ISP connection.
Primary DNS - Enter the DNS IPv6 address in
Secondary DNS - Enter another DNS IPv6 address in
IPv6 Address Assign Type - There are two types of assignation for IPv6 address: SLAAC (Stateless address
SLAAC
•IPv6 Address Prefix
DHCPv6 Server
•Release Time - the length of time a network user will be allowed to keep connecting to the Router with the current DHCPv6 Address. Enter the amount of time (in seconds) that the DHCPv6 address will be leased. The time range is 1~691200 seconds. The default value is 86400 seconds.
•IPv6 Address - Displays the LAN IPv6 Address.