DSL-322T ADSL Modem User Guide
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most of the Internet. Get this IP address from your ISP.
Primary DNS Address
This is the IP address of the first choice for Domain Name Service (DNS)
used to match the named URL web address used by most browsers with
the actual global IP address used for a web server. Usually this will be a
server owned by the ISP. Get this IP address from your ISP.
Secondary DNS Address
This is the second choice for a DNS server. Get this IP address from your
ISP.
MTU
The Maximum Transmission Unit size may be changed if you want to
optimize efficiency for uploading data through the WAN interface. The
default setting (
1400 bytes) should be suitable for most users. Some user
may want to adjust the setting to optimize performance for wireless traffic
or when low latency is desired (such as with Internet gaming). It is highly
recommended that the user research how adjusting the MTU may affect
network traffic for better or worse.