- 110 -
MTU Size - The normal MTU (Maximum Transmission Unit) value for most Ethernet networks
is 1480 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.
If your ISP gives you one or two DNS IPv6 addresses, select Use the following IPv6 DNS
Servers and enter the Primary IPv6 DNS and Secondary IPv6 DNS into the correct fields.
Otherwise, the DNS servers will be assigned from ISP dynamically.
Primary IPv6 DNS - Enter the DNS IPv6 address in dotted-decimal notation provided by your
ISP.
Secondary IPv6 DNS - Enter another DNS IPv6 address in dotted-decimal notation provided
by your ISP.
IPv6 Address Assign Type - There are two types of assignation for IPv6 address: SLAAC
(Stateless address auto-configuration) and DHCPv6 (Dynamic Host Configuration Protocol
for IPv6) Server.
SLAAC
• IPv6 Address Prefix -The Prefix of IPv6 Address
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.
5.19 System Tools
Figure 5-102 The System Tools menu
Choose menu “System Tools”, and you can see the submenus under the main menu: Time
Settings, Diagnostic, Firmware Upgrade, Factory Defaults, Backup & Restore, Reboot,
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General
Weight and Dimensions
