HSDPA
User’s Manual
WMOCEAN +420 225 371 777
http://www.wmocean.com
p. 38
Connection settings
Parameters for the connection to the mobile Internet provider.
Username: The user name used for log-in to the 3G (UMTS) wireless network
Password: The password used for authentication. Some network operators do not need
username and password, log-in is allowed or not based upon Caller ID.
MTU: value for the Maximum Transmission Unit. MTU is the largest physical packet size,
measured in bytes that a network can transmit. Messages larger than this will be fragmented
into several packets. Different networks have different values for MTU, which is set by the
network administrator. The default MTU size is 576 for many PPP connections, 1500 for
Ethernet networks, etc.
Idle Time: can disable the dial-up connection when there is no more data traffic.
If no data packet is sent through thee UMTS link, the Internet connection will be broken. You
can specify this time interval, in seconds. If you set the time interval to 0 (zero), the dial-up
connection will remain always on, even if there is no data traffic on the remote interface.
When it detects outgoing data traffic, automatically performs dial-up, in order to
connect to the Internet.
Route:
Default route: Disabled or Enabled. This is a new feature, allows you to ask the Internet
provider for a static address. Usually, the ISP assigns you the first available address each
time you connect. Now you have the options either to accept the dynamic address assigned
by DHCP or to ask for a specific static address. In this case you must fill the other
parameters too:
IP Address, Gateway, and the Name servers (primary and secondary) to be used.
5.3.5. GRE
Settings for the GRE IP Tunnel, which is used when you need to perform IP tunneling in
order to achieve a Virtual Private Network using several HSDPA devices
interconnected over the 3G mobile communications network.
GRE IP Tunnel0: select Enable or Disable.
The default is Disabled, meaning that IP tunneling is not used.
If the GRE IP tunneling is turned on (Enabled),
the fields will be displayed normally, so you can
enter or edit the corresponding values.
Remote Endpoint IP Address: the address of
the opposed (remote) end of the IP tunnel
Local Endpoint IP Address: the address of the
starting (local) end of the IP tunnel
Local IP Address: static local address (in the
LAN) and the respective Netmask
Key: the “key” code required for establishing a GRE IP tunnel.