Ssh Overview - ZyXEL Communications GS1920v2 Series User Manual

Table 181 SNMP IP Traps
O PT IO N O BJEC T L ABEL
ping pingProbeFailed
pingTestFailed
pingTestCompleted
traceroute traceRouteTestFailed
traceRouteTestCompleted
Table 182 SNMP Switch Traps
O PT IO N O BJEC T L ABEL
stp STPNewRoot
STPTopologyChange
rmon RmonRisingAlarm
RmonFallingAlarm
40.7.2 SSH O ve rvie w
Unlike Telnet or FTP, which transmit data in clear text, SSH (Secure Shell) is a secure communication
protocol that combines authentication and data encryption to provide secure encrypted
communication between two hosts over an unsecured network.
Fig ure 261
40.7.2.1 Ho w SSH wo rks
The following table summarizes how a secure connection is established between two remote hosts.
Chapter 40 Access Control
O BJEC T ID
1.3.6.1.2.1.80.0.1
1.3.6.1.2.1.80.0.2
1.3.6.1.2.1.80.0.3
1.3.6.1.2.1.81.0.2
1.3.6.1.2.1.81.0.3
O BJEC T ID
1.3.6.1.2.1.17.0.1
1.3.6.1.2.1.17.0.2
1.3.6.1.2.1.16.0.1
1.3.6.1.2.1.16.0.2
SSH Communication Example
GS1920v2 Series User's Guide
DESC RIPT IO N
This trap is sent when a single ping probe fails.
This trap is sent when a ping test (consisting of a series of
ping probes) fails.
This trap is sent when a ping test is completed.
This trap is sent when a traceroute test fails.
This trap is sent when a traceroute test is completed.
DESC RIPT IO N
This trap is sent when the STP root switch changes.
This trap is sent when the STP topology changes.
This trap is sent when a variable goes over the RMON
"rising" threshold.
This trap is sent when the variable falls below the RMON
"falling" threshold.
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