4xem IPVS1A User Manual page 49

option is ignored in the PPP connection.
Administrators may modify the network settings to fit into existing networks. Some broadband service
subnet mask may differ from the default value 255.255.255.0 and service providers may assign some
specific network settings. Administrators should change the configuration according to what is given by
the service provider. The configuration may include "IP address", "Subne t Mask", "Default Route r",
"Primary DNS" and "Secondary DNS". After changing network settings, be sure to leave "Rese t
ne twork at next boot" blank to skip installation when the system restarts. Otherwise the settings will be
erased.
Video Server not only plays the role of server, it will also actively connect to servers outside to send out
messages or snapshots. When Video Server starts, it will send out a system log to notify administrators.
Even in modem application, Video Server will send out a connection log whenever it dials out to an ISP
or dialup server outside. If the administrator has setup some applications in either event mode or
sequential mode, Video Server will send out snapshots once conditions are met. There are two methods to
send files, including e-mail and FTP. To ensure Video Server sends out files correctly, administrators
should set valid "SMTP (mail) se rve r" and "Re cipient email addre ss" as well as "Primary FTP
Se rve r", "Primary FTP use r name" and "Primary FTP password". " Return email address" is whom
the mail will return when the SMTP server rejects upon any failure. Some ISP may reject the mail if the
address is invalid. "Primary FTP re mote folde r" is the relative sub-folder in the remote FT P server.
In both methods, a "Se condary" server can be provided for backup connection. However the primary
server information should be entered first. If the primary server is not set, the related FTP or email will be
deactivated. Note that it may take time to connect to the secondary server after the first one fails and it
may affect some applications when conditions happen too often.
For security or network integration, administrators also can hide the server from the general HTTP port by
changing "HTTP port" to other than default 80. " Local FTP server port" can also be changed to other
than default 21. These ports of "Control Channel Port", " Audio Channel Port" and "Vide o Channel
Port" which are used in media transmission can also be changed. Administrators should have enough
acknowledge before changing the default port.
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