Permanent Connection - INSYS MoRoS Manual

MoRoS
Please get more information from the according GSM/GPRS provider or read the manual.
For a GPRS connection, an APN (Access Point Name) must be entered.
Enter a value for "Idle time" to set the time after which a dial-out connection is auto-
matically terminated, if no data is transmitted during the set time.
The setting "0" will prevent the automatic termination of the connection. In this case, a
connection remains established until the remote terminal terminates the connection. As
an option, a maximum connect time may be defined. After this period has expired, the
connection is terminated regardless if data was transmitted or not. A set maximum con-
nect time of 0 seconds will deactivate the forced termination. This function may be prac-
tical if the MoRoS dials into the Internet, as the MoRoS might receive undesired data
packets. It may occur that the "Idle timer" is reset prior to its expiry, because search en-
gine robots, misdirected queries, malicious programs or other data packets arrive at the
MoRoS. The longer the setting for the "Idle timer" is, the more likely it will be reset from
such a data packet. As a result, unintentionally high connection costs may occur.

8.4.2 Permanent connection

If it is required to establish a connection immediately and to maintain it permanently
("Flat rate operation"), this check box must be activated. The connection is checked ac-
cording to the set time interval.
The type of checking can be selected:
Checking using a DNS query: After the time interval has expired, the DNS server is
queried for a preset domain name. It is assumed that the MoRoS has received at
least one IP address of a DNS server during dialing in. If this query fails, the con-
nection is terminated and re-established after one minute.
The second checking method is performed using the Ping function. The phone
number of the remote terminal must be set. This may be a domain name or an IP
address. If this Ping fails (i.e. the remote terminal does not reply with a "Pong"),
the connection is not terminated. This checking method, however, will automati-
cally trigger a connection setup although there was never an established PPP con-
nection.
Feb-07
Caution!
The connection is only terminated automatically, if no data packets
are transmitted during the entire "Idle time". If a data packet is
transmitted, the "Idle timer" starts counting from the beginning.
Functions
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