User`s guide

VigorPro5510 Series User’s Guide
37
Static or Dynamic IP
(DHCP Client)
Click Enable for activating this function. If you click Disable,
this function will be closed and all the settings that you adjusted
in this page will be invalid.
ISDN Dial Backup
Setup
This setting is available for the routers supporting ISDN function
only. Before utilizing the ISDN dial backup feature, you must
create a dial backup profile first. Please click Internet Access
Setup > Dialing to a Single ISP to enter the backup profile.
This setting is available for i model only.
Due to the absence of the ISDN interface in some models, the
ISDN dial backup feature and its associated setup options are not
available to them. Please refer to the previous part for further
information.
None - Disable the backup function.
Packet Trigger -The backup line is not on until a packet from a
local host triggers the router to establish a connection.
Always On - If the broadband connection is no longer available,
the backup line will be activated automatically and always on
until the broadband connection is restored. We recommend you to
enable this feature if you host a web server for your customers’
access.
Keep WAN
Normally, this function is designed for Dynamic IP environments