Vivotek IP3111 User Manual page 45

not support passive mode.
"2nd FTP server" The domain name or IP address of the external FTP server.
"2nd FTP user name" Granted user name on the backup FTP server.
"2nd FTP password" Granted password on the backup FTP server.
"2nd FTP remote folder" Granted folder on the backup FTP server.
"Secondary FTP passive mode" Passive mode setting for the backup FTP server.
In both methods, a "2nd" server can be provided for backup connection for "1st". 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 SMTP, video server will automatically try to connect to 2nd
SMTP server while failing to send out to 1st SMTP caused by any wrong SMTP information.
For security or network integration, Administrator 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 "Video Channel Port" which are used in media transmission can also
be changed. Administrator should have enough acknowledge before changing the default
port.
NOTICE: if video server is behind NAT, port mapping is necessary for connection outside
NAT. HTTP port, control channel port, video channel and audio channel port totally 4 ports
mapping needs to set in the NAT router to enable fully video and audio streaming by video
server.
If the Video Server works in variation or low bandwidth (comparing with video bandwidth)
environment, the client side will receive the poor quality of media. For improving this
situation, you can check the "
Improve audio quality in low bandwidth environment" item. It can
make the audio quality better, but the media delay is longer and real-time issue is bad. If the network
performance is worst, please select the"UDP protocol" as the communication protocol in "client setting"
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