Reference:Configuration/General/Logging

External logging is disabled as standard (Off). After selection of a log type, logging is enabled, as are the relevant entry fields.

Off:	Logging is disabled.
TCP:	The device transmits the syslog entries using a TCP (Transmission Control Protocol) connection. In the Address field, the IP-Adresse at which the TCP connection is to be set up is entered. In the Port field, the port to which the connection is set up is specified.
SYSLOG:	The syslog entries are transmitted to a syslog recipient (also referred to as syslogd, syslog server or syslog daemon ), which is then responsible for their further evaluation or storage. In the Address field, the IP address of the syslogd server is entered. In the Class field, the desired message class that will be responsible for further processing of the syslog entries is entered. The syslog class is a numeric value between 0 and 7.
HTTP:	The syslog entries are transferred to a Web server, where they can be further processed. Each individual syslog entry is transferred as form data to the Web server in HTTP GET format. In the Address field, the IP-Adresse of the Web server that carries out further processing of the transmitted data is entered. In the Path field, the relative URL of the form program on the Web server is entered.

The device will make a HTTP GET request to the Web server on the entered URL, followed by the URL-encoded syslog entry. If, for example, a page named /cdr/cdrwrite.asp with a form that expects the log message in parameter msg exists on a Web server, then the value /cdr/cdrwrite.asp is entered. The device will then make a GET /cdr/cdrwrite.asp?event=syslog&msg=logmsg request to the Web server.