Change The Mtu Size - NETGEAR CAX30 User Manual

Nighthawk AX6 AX2700 WiFI Cable Modem Router Model CAX30
• Use Static IP Address. Enter the IP address, IP subnet mask, and the gateway IP
address that your ISP assigned. The gateway is the ISP modem router to which
your modem router connects.
8. Select a 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.
9. Click the Apply button.
Your settings are saved.
If the NETGEAR website does not display within one minute, see Troubleshooting
on page 127.

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.
The best MTU setting for NETGEAR equipment is often the default value. In some
situations, changing the value fixes one problem but causes another. Leave the MTU
unchanged unless one of these situations occurs:
• You experience problems connecting to your ISP or other Internet service, and the
technical support of either the ISP or NETGEAR recommends changing the MTU
setting. These web-based applications might require an MTU change:
- A secure website that does not open, or displays only part of a web page
- Yahoo email
- MSN portal
• You use VPN and experience severe performance problems.
• You used a program to optimize MTU for performance reasons, and now you are
experiencing connectivity or performance problems.
Specify Your Internet Settings 22 User Manual