Interfaces; Wan; Wan Link Prerequisites - NetModule NB1600 User Manual

5.3. INTERFACES

5.3.1. WAN

Link Management
Depending on your hardware model, WAN links can be made up of either Wireless
Wide Area Network (WWAN), Wireless LAN (WLAN), Ethernet or PPP over Ethernet
(PPPoE) connections. Please note that each WAN link has to be configured and enabled
in order to appear on this page.
Generally, a link will be only dialed or declared as up if the following prerequisites are
met:
Condition
Modem is registered
Registered with valid service type X
Valid SIM state
Sufficient signal strength
Client is associated
Client is authenticated
Valid DHCP address retrieved
Link is up and holds address
Ping check succeeded
The menu can be used further to prioritize your WAN links. The highest priority link
which has been established successfully will become the so-called hotlink which holds
the default route for outgoing packets.
In case a link goes down, the system will automatically switch over to the next link in
the priority list. You can configure each link to be either established when the switch
occurs or permanently in order to minimize link downtime.
1st priority: The primary link which will be used whenever possible.
2nd priority: The first fallback link, it can be enabled permanently or being dialed as
soon as Link 1 goes down.
3rd priority: The second fallback link, it can be enabled permanently or being dialed as
soon as Link 2 goes down.
4th priority: The third fallback link, it can be enabled permanently or being dialed as
NB1600 User Manual
WWAN WLAN ETH
X
X
X
X
X
X
Table 5.1.: WAN Link Prerequisites
25
PPPoE
X
X
X
X X X
X X X
X X X