Proroute GEM420 4G M2M Router
GEM420 User Manual
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to choose this scheme if for mission critical applications to ensure Internet
connection is available all the time. If choosing “Dial-on-demand”, this
gateway won’t start to establish Internet connection until local data is going
to be sent to WAN side. After that, this gateway will disconnect WAN
connection if idle time reaches value of Maximum Idle Time. If choosing
“Manually”, this gateway won’t start to establish WAN connection until you
press “Connect” button on web UI. After that, this gateway will disconnect
WAN connection if idle time reaches value of Maximum Idle Time.
6.
MTU:
Most ISP offers MTU value to users. The default MTU value is 0
(auto).
7.
MPPE (Microsoft Point-to-Point Encryption):
Enable this option to add
encryption on transferred and received data packets. Please check with your
ISP to see if this feature is supported or not.
8.
NAT:
By default, it is enabled. If you disable this option, there will be no NAT
mechanism between LAN side and WAN side.
9.
Network Monitoring:
You can do preferred settings by using this feature to
monitor the connection status of WAN interface. Checking mechanism
depends on several parameters defined here. The network monitoring
provides the WAN interface status and then system can prevent embedded
3G/LTE modem from some sort of auto-timeout and disconnects from the
Internet after a period of inactivity.
Enable:
Check the box to do Network Monitoring.
DNS Query/ICMP Checking
: Do the keep alive through DNS query packets
or ICMP packets.
Loading Checking
: The response time of replied keep-alive packets may
increase when WAN bandwidth is fully occupied. To avoid keep-alive feature
work abnormally, enable this option will stop sending keep-alive packets
when there are continuous incoming and outgoing data packets passing
through WAN connection.
Check Interval
: Indicate how often to send keep-alive packet.
Check Timeout
: Set allowance of time period to receive response of
keep-alive packet. If this gateway doesn’t receive response within this time
period, this gateway will record this keep alive is failed.
Latency Threshold
: Set acceptance of response time. This gateway will