Configuration
4.3 Mobile WAN Configuration
Continued from previous page
Item
Description
MRU
Maximum Receive Unit – maximum size of packet that the router can
receive via Mobile WAN. The default value is 1500 B. Other settings
may cause the router to receive data incorrectly. Minimal value in IPv4
and IPv4/IPv6 mode: 128 B. Minimal value in IPv6 mode: 1280 B.
MTU
Maximum Transmission Unit – maximum size of packet that the router
can transmit via Mobile WAN. The default value is 1500 B. Other set-
tings may cause the router to transmit data incorrectly. Minimal value in
IPv4 and IPv4/IPv6 mode: 128 B. Minimal value in IPv6 mode: 1280 B.
Table 19: Mobile WAN Connection Configuration
The following list contains tips for working with the
Mobile WAN
configuration form:
•
If the MTU size is set incorrectly, then the router will not exceed the data transfer. If the
MTU value is set too low, more frequent fragmentation of data will occur. More frequent
fragmentation will mean a higher overhead and also the possibility of packet damage
during defragmentation. In contrast, a higher MTU value can cause the network to drop
the packet.
•
If the
IP address
field is left blank, when the router establishes a connection, the mobile
network carrier will automatically assign an IP address. If you assign an IP address
manually, then the router will access the network quicker.
•
If the
APN
field is left blank, then the router automatically selects the APN using the IMSI
code of the SIM card. If the PLMN (operator number format) is not in the APN list, then
the router uses the default APN "
internet
". If AT&T carrier network is detected, "
phone
"
is used as default APN. The mobile network carrier defines the APN.
•
If you enter the word
blank
in the
APN
field, then the router interprets the APN as blank.
The correct PIN must be filled in. An incorrect PIN may block the SIM card.
Parameters identified with an asterisk require you to enter the appropriate information only if
this information is required by the mobile network carrier.
When the router is unsuccessful in establishing a connection to mobile network, you should
verify accuracy of the entered data. Alternatively, you could try a different authentication method
or network type.
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.
46
UM Configuration OWL LTE M12
Rel. 06.1.09 - 07/2019
Summary of Contents for Hirschmann OWL LTE M12
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