NetModule NB3700 User Manual page 31

We recommend to use the permanent operation mode for WAN links in general. How-
ever, in case of time-limited mobile tariffs for instance, the switchover mode might be
applicable. By using the distributed mode, it is possible to distribute outgoing traffic
over multiple WAN links based on their weight ratio.
For mobile links, it is further possible to pass through the WAN address towards a local
host (also called Drop-In or IP Pass-through). In particular, the first DHCP client will
receive the public IP address. More or less, the system acts like a modem in such case
which can be helpful in case of firewall issues. Once established, the Web Manager can
be reached over port 8080 using the WAN address but still over the LAN1 interface
using port 80.
Parameter
disabled
permanent
on switchover
distributed
Parameter
Operation mode
Weight
Switch-back
IP Pass-through
NB3700 User Manual 3.8
WAN Link Operation Modes
Link is disabled
Link is being established permanently
Link is being established on switchover, it will be dialled if
previous links failed
Link is member of a load distribution group
WAN Link Settings
The operation mode of the link
The weight ratio of a distributed link
Specifies the switch-back condition of a switchover link and
the time after an active hotlink will be teared down
Specifies whether the IP address of the WAN link should
be passed-through to the first DHCP client of the specified
LAN interface
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