NetModule NB3700, User Manual

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NB3700 User Manual 3.8
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 WAN Link Operation Modes
disabled Link is disabled
permanent Link is being established permanently
on switchover Link is being established on switchover, it will be dialled if
previous links failed
distributed Link is member of a load distribution group
Parameter WAN Link Settings
Operation mode The operation mode of the link
Weight The weight ratio of a distributed link
Switch-back Specifies the switch-back condition of a switchover link and
the time after an active hotlink will be teared down
IP Pass-through 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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