User manual

4200 User Manual Edgewater Networks, Inc.
Version 2.2 15
B. Enter the IP Address.
C. Enter the Subnet Mask (e.g. 255.255.255.0).
D. Press Submit.
WARNING: After pressing submit the 4200 will become
unreachable until you use a PC with an address on the same subnet
as entered in steps B and C above.
Set Ethernet Link Rate
WARNING: The vast majority of ethernet networking devices
including the 4200 use “autonegotiate” as a default setting.
Chances are that you will not have to set the ethernet link rate as
described below. Please use caution if manually configuring the link
rate as a speed or duplex mismatch will result in a loss of
connectivity.
If needed configure the rate of the physical ethernet port on the 4200. The default
setting for the Ethernet port is to “autonegotiate” both the link speed and duplex
with locally attached devices.
A. Select System.
B. Select System Overview.
C. Select Set Link Rate.
D. Select LAN and/or WAN.
E. Select the appropriate link rate for your
ethernet network:
10baseT-HD = 10Mbits per second using half
duplex transmission
10baseT-FD = 10Mbits per second using full
duplex transmission
100baseT-HD = 100Mbits per second using
half duplex transmission
100baseT –FD = 100Mbits per second using
full duplex transmission
Autonegotiate = The 4200 will autonegotiate
link rate and duplex with the directly attached
device.
F. Press Submit.
Set WAN MTU size
The WAN MTU size may be set to reduce the latency that is introduced when large
data packets are sent over a slow link. The default setting is 1500 bytes for static IP
addresses. PPPoE links negotiate the value automatically although the value can be
overridden using this field. If the WAN Upstream Bandwidth is less than 256 Kbit/s,
the MTU size is automatically reduced to 800 bytes.
WARNING: When manually configuring the MTU size we recommend
that you use a setting of 800 bytes or greater. You may experience
problems with certain types of VoIP traffic if the MTU size is set
below 800 bytes.