Vivotek IP3111/IP3121 User Manual download pdf (Page 47)

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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", "Subnet Mask", "Default Router",

"Primary DNS" and "Secondary DNS". After changing network settings, be sure to leave "Reset

network at next boot" blank to skip installation when the system restarts. Otherwise the settings will be

erased.

NetworKam not only plays the role of server, it will also actively connect to servers outside to send out

messages or snapshots. When NetworKam starts, it will send out a system log to notify administrators.

Even in modem application, NetworKam 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, NetworKam will send out snapshots once conditions are met. There are two methods to send files,

including e-mail and FTP. To ensure NetworKam sends out files correctly, the administrator should set

valid "SMTP (mail) Server" and "Recipient Email Address" as well as "Primary FTP Server",

"Primary FTP Server", "Primary FTP User 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 remote folder" is the relative sub-folder in the

remote FTP server.

In both methods, a "Secondary" 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 80 and known port numbers such as 21 and 23. These ports of

“Control Channel Port”, “Audio Channel Port” and “Video Channel Port” which are used in media

transmission can also be changed. Administrators should have enough acknowledge before changing the

default port.

If the NetworKam works in variation or low bandwidth (comparing with video bandwidth) environment,

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Vivotek IP3111/IP3121 User Manual Page 47