ZyXEL P-2024 User Guide - Page 107
Logs, 11.1 Logs Overview, 11.1.1 Alerts, 11.1.2 Syslog Logs, Alerts, Syslog Logs
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CHAPTER 11 Logs Use these screens to look at log entries and alerts and to configure the P-2024's log and alert settings. 11.1 Logs Overview For a list of log messages, see Section 11.3 on page 110. 11.1.1 Alerts An alert is a type of log that warrants more serious attention. Some categories such as System Errors consist of both logs and alerts. 11.1.2 Syslog Logs There are two types of syslog: event logs and traffic logs. The device generates an event log when a system event occurs, for example, when a user logs in or the device is under attack. The device generates a traffic log when a "session" is terminated. A traffic log summarizes the session's type, when it started and stopped the amount of traffic that was sent and received and so on. An external log analyzer can reconstruct and analyze the traffic flowing through the device after collecting the traffic logs. Table 41 Syslog Logs LOG MESSAGE DESCRIPTION Event Log: Mon dd hr:mm:ss hostname src="" dst="" msg="" note="" devID="" cat="" This message is sent by the system ("RAS" displays as the system name if you haven't configured one) when the router generates a syslog. The facility is defined in the Log Settings screen. The severity is the log's syslog class. The definition of messages and notes are defined in the various log charts throughout this chapter. The "devID" is the MAC address of the router's LAN port. The "cat" is the same as the category in the router's logs. Traffic Log: Mon dd hr:mm:ss hostname src="" dst="" msg="Traffic Log" note="Traffic Log" devID="" cat="Traffic Log" duration=seconds sent=sentBytes rcvd=receiveBytes dir="" protoID=IPProtocolID proto="serviceName" This message is sent by the device when the connection (session) is closed. The facility is defined in the Log Settings screen. The severity is the traffic log type. The message and note always display "Traffic Log". The "proto" field lists the service name. The "dir" field lists the incoming and outgoing interfaces ("LAN:LAN", "LAN:WAN", "LAN:DEV" for example). P-2024 User's Guide 107