Chapter 40 Access Control
GS1920v2 Series User’s Guide
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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
SSH Communication Example
40.7.2.1 Ho w SSH wo rks
The following table summarizes how a secure connection is established between two remote hosts.
Table 181 SNMP IP Traps
O PTIO N
O BJEC T LABEL
O BJEC T ID
DESC RIPTIO N
ping
pingProbeFailed
1.3.6.1.2.1.80.0.1
This trap is sent when a single ping probe fails.
pingTestFailed
1.3.6.1.2.1.80.0.2
This trap is sent when a ping test (consisting of a series of
ping probes) fails.
pingTestCompleted
1.3.6.1.2.1.80.0.3
This trap is sent when a ping test is completed.
traceroute
traceRouteTestFailed
1.3.6.1.2.1.81.0.2
This trap is sent when a traceroute test fails.
traceRouteTestCompleted
1.3.6.1.2.1.81.0.3
This trap is sent when a traceroute test is completed.
Table 182 SNMP Switch Traps
O PTIO N
O BJEC T LABEL
O BJEC T ID
DESC RIPTIO N
stp
STPNewRoot
1.3.6.1.2.1.17.0.1
This trap is sent when the STP root switch changes.
STPTopologyChange
1.3.6.1.2.1.17.0.2
This trap is sent when the STP topology changes.
rmon
RmonRisingAlarm
1.3.6.1.2.1.16.0.1
This trap is sent when a variable goes over the RMON
"rising" threshold.
RmonFallingAlarm
1.3.6.1.2.1.16.0.2
This trap is sent when the variable falls below the RMON
"falling" threshold.
