NetComm NTC-220 User Manual page 35

Setting the router to dial a connection when traffic is detected on specific ports
In some situations, you may wish to have the internet connection disabled except at times when outbound traffic to
a particular external host's port or group of ports is sent to the router. To use this feature, click Enable dial port
filter and enter the port number or list of port numbers separated by commas. When you select this option, all
outbound TCP/UDP packets to any remote host on the specified port(s) will trigger the connection to dial. Note
that when this feature is enabled, the options to ignore specific packet types are not available.
You can allow Microsoft network awareness (NCSI) traffic through but if you prefer that they do not trigger the
connection, click the Ignore Microsoft network awareness (NCSI) traffic toggle key to set it to ON.
Excluding certain packet types from triggering the connection to dial
Depending on your environment, you might prefer to exclude certain types of traffic passing through the router
from triggering the data connection. You can tell the router to ignore outbound TCP, UDP or ICMP packets. When
any of these options are checked the router will not dial a connection when that type of outbound destined data
packet reaches the router from a locally connected device.
Excluding certain application types from triggering the connection to dial
Some devices may generate general traffic as a part of normal operation which you may not want to trigger the
data connection. You can set the router to ignore Domain Name System (DNS), Network Time Protocol (NTP) or
Microsoft network awareness (NCSI) traffic from devices behind the router. When you check the box for these
options, it tells the router to ignore the request from that application type and will not dial a connection when this
data type is received. Note that enabling Ignore Microsoft network awareness (NCSI) traffic also enables Ignore
DNS and Ignore NTP.
NTC-220 – User Guide
UG01028 v1.2 March 2019
Figure 30 – Connect on demand – Data activity triggered connection
Figure 31 – Connect on demand – Ignore NCSI traffic
Figure 32 – Connect on demand – Excluding IP protocols
Figure 33 – Connect on demand – Excluding application types
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© NetComm Wireless 2019