ADVANTECH ICR-3200 Cellular Router Instruction Manual
ICR-3200
4.3.2 DNS Address Configuration
The DNS Settings parameter is designed for easier configuration on the client’s side. When
this value is set to get from operator the router will attempt to automatically obtain an IP
address from the primary and secondary DNS server of the mobile network carrier. To specify
the IP addresses of the Primary DNS servers manually, on the DNS Server pull down list
select the value set manually. You can also fill-in the IPv4 or IPv6 address of the DNS server
(or both) based on the IP Mode option.
4.3.3 Check Connection to Mobile Network
Enabling the Check Connection function for mobile networks is necessary for uninter-
rupted and continuous operation of the router.
If the Check Connection item is set to enabled or enabled + bind, the router will be sending
the ping requests to the specified domain or IP address configured in Ping IP Address or Ping
IPv6 Address at regular time intervals set up in the Ping Interval.
In case of an unsuccessful ping, a new ping will be sent after the Ping Timeout. If the ping
is unsuccessful three times in a row, the router will terminate the cellular connection and will
attempt to establish a new one.
This monitoring function can be set for both SIM cards separately, but running on the active
SIM at given time only. Be sure, you configure a functional address as the destination for the
ping, for example an IP address of the operator’s DNS server.
If the Check Connection item is set to the enabled, the ping requests are being sent on
the basis of the routing table. Therefore, the requests may be sent through any available
interface. If you require each ping request to be sent through the network interface, which was
created when establishing a connection to the mobile operator, it is necessary to set the Check
Connection to enabled + bind. The disabled option deactivates checking of the connection to
the mobile network.
A note for routers connected to the Verizon carrier (detected by the router):
The retry interval for connecting to the mobile network prolongs with more retries. First
two retries are done after 1 minute. Then the interval prolongs to 2, 8 and 15 minutes.
The ninth and every other retry is done in 90 minutes interval.
If Enable Traffic Monitoring item is checked, the router will monitor the Mobile WAN traffic
without sending the ping requests. If there is no traffic, the router will start sending the ping
requests.
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| General | Details |
|---|---|
| Name | ADVANTECH ICR-3200 Cellular Router Instruction Manual |
| Make | Advantech |
| Language | English |
| Filetype | PDF (Download) |
| File size | 3.17 MB |
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