NetModule NB1800, Руководство пользователя

Страница: 38 / 225

NBB-800
User Manual for NRSW version 4.5.0.100
Attention:
You can have concurrent WWAN links which share a common recource like one WWAN
module using SIM cards of different providers. In that case it would not be possible to
find out if the link with the higher priority is available without putting down the low priority
link. Therefor such a link will behave like a
switchover
even if configured as
permanent
.
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
Bridging interface
1
If WLAN client, the LAN interface to which the WAN link should be
bridged.
NetModule routers provide a feature called IP pass-through (aka Drop-In mode). If enabled, the WAN
address will be be passed-through to the first DHCP client of the specified LAN interface. As Ethernet-
based communication requires additional addresses, we pick an appropriate subnet to talk to the LAN
host. In case this overlaps with other addresses of your WAN network, you may optionally specify the
network given by your provider to avoid any address conflicts.
Parameter IP Pass-Through Settings
IP Pass-through Enables or disables IP pass-through
Interface Specifies the interface on which the address shall be passed-through
WAN network Specifies the WAN network
WAN netmask Specifies the WAN netmask
1
This options requires an Access Point with four address frame format support.
38