Change The Mtu Size - NETGEAR R6400 User Manual

This is usually the name that you use in your email address. For example, if your main
mail account is JerAB@ISP.com, you would type JerAB in this field. Some ISPs (like
Mindspring, Earthlink, and T-DSL) require that you use your full email address when you
log in. If your ISP requires your full email address, type it in this field.
8. In the Password field, enter the password for the ISP connection.
9. In the Service Name field, enter a service name.
If your ISP did not provide a service name, leave this field blank.
Note: The default setting of the Connection Mode menu is Always On to
provide a steady IPv6 connection. The router never terminates the
connection. If the connection is terminated, for example, when the
modem is turned off, the router attempts to reestablish the connection
immediately after the PPPoE connection becomes available again.
10. Select an IPv6 Domain Name Server (DNS) Address radio button:
• Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your
ISP automatically assigns this address.
• Use These DNS Servers. If you know that your ISP requires specific servers, select
this option. Enter the IP address of your ISP's primary DNS server. If a secondary
DNS server address is available, enter it also.
11. Select an IP Address Assignment radio button:
• Use DHCP Server. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCv6 client function.
• Auto Config. This is the default setting.
This setting specifies how the router assigns IPv6 addresses to the devices on your home
network (the LAN).
12. (Optional) Select the Use This Interface ID check box and specify the interface ID that you
want to be used for the IPv6 address of the router's LAN interface.
If you do not specify an ID here, the router generates one automatically from its MAC
address.
13. Click the Apply button.
Your settings are saved.

Change the MTU Size

The maximum transmission unit (MTU) is the largest data packet a network device transmits.
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path uses a lower MTU
setting than the other devices, the data packets must be split or "fragmented" to
accommodate the device with the smallest MTU.
AC1750 Smart WiFi Router
Specify Your Internet Settings
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