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When the network administrator realized his mistake, he issued another Set command in Frame 21, with the SNMP community name = administrator, and a value for the Trap Receiver Community = trap1. This time, the SNMP Set command was authenticated and the Response (Frame 22) indicated "no error." The third step occurs in Frames 23 and 24, where a GetNext for the SynOptics private MIB objects (Frame 24) verifies that the value has been written as specified.
Trace 7.3a Verifying a Set command (summary)
Sniffer Network Analyzer data 23-Sep at 08:40:52 file SNMP71_7.ENC Pg 1
SUMMARY Delta T Destination Source Summary
5 27.1787 [XXX.YYY.170... Manager SNMP GetNext
SynOptics.1.3.2.4.1.0 ..
SynOptics.1.3.2.4.21.0
(16 items)
6 0.2388 Manager Hub Agent SNMP GetReply
SynOptics.1.3.2.4.2.0 ..
SynOptics.2.1.1.1.1.1
(16 items)
7 0.0064 Hub Agent Manager SNMP GetNext
SynOptics.1.3.2.4.3.0 ..
SynOptics.1.3.2.4.9.0
(7 items)
SynOptics.1.3.2.4.1 ..
SynOptics.1.3.2.4.21
(16 items)
24 0.2185 Manager Hub Agent SNMP GetReply
SynOptics.1.3.2.4.1.0 ..
SynOptics.1.3.2.4.21.0
(16 items)
Trace 7.3b Verifying a Set command (details)
Sniffer Network Analyzer data 23-Sep at 08:40:52, file SNMP71_7.ENC,
Pg 1
-------------------------- Frame 6 ----------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) ----
SNMP:
SNMP: Version = 0
SNMP: Community = public
SNMP: Command = Get response
SNMP: Request ID = 717281288
SNMP: Error status = 0 (No error)
SNMP: Error index = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.2.0} (SynOptics.1.3.2.4.2.0)
SNMP: Value = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.11.0} (SynOptics.1.3.2.4.11.0)
SNMP: Value = [255.255.255.0]
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.12.0} (SynOptics.1.3.2.4.12.0)
SNMP: Value = [XXX.YYY.170.250]
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.13.0} (SynOptics.1.3.2.4.13.0)
SNMP: Value = [XXX.YYY.170.20], Manager
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.14.0} (SynOptics.1.3.2.4.14.0)
SNMP: Value = /tftpboot/syn2.cfg
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.15.0} (SynOptics.1.3.2.4.15.0)
SNMP: Value = 2
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.16.0} (SynOptics.1.3.2.4.16.0)
SNMP: Value = 1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.17.0} (SynOptics.1.3.2.4.17.0)
SNMP: Value = 9600 (gauge)
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.18.0} (SynOptics.1.3.2.4.18.0)
SNMP: Value =
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.19.0} (SynOptics.1.3.2.4.19.0)
SNMP: Value =
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.1.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.1.XXX.YYY ...
SNMP: Value = 1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.3.0} (SynOptics.1.3.2.4.3.0)
SNMP: Value = 1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.2.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.2.XXX.YYY ...
SNMP: Value = [XXX.YYY.170.20], Manager
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.3.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.3.XXX.YYY ...
SNMP: Value = public
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.21.0} (SynOptics.1.3.2.4.21.0)
SNMP: Value = 2
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.2.1.1.1.1.1} (SynOptics.2.1.1.1.1.1)
SNMP: Value = 1
SNMP:
.
.
.
-------------------------- Frame 9 ----------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) ----
SNMP:
SNMP: Version = 0
SNMP: Community = public
SNMP: Command = Set request
SNMP: Request ID = 717288552
SNMP: Error status = 0 (No error)
SNMP: Error index = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.3.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.3.XXX.YYY ...
SNMP: Value = test
SNMP:
-------------------------- Frame 10 ---------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) ----
SNMP:
SNMP: Version = 0
SNMP: Community = public
SNMP: Command = Trap
SNMP: Enterprise = {1.3.6.1.4.1.45.3.8.1}
SNMP: Network address = [XXX.YYY.170.53]
SNMP: Generic trap = 4 (Authentication failure)
SNMP: Specific trap = 0
SNMP: Time ticks = 57631330
SNMP:
.
.
.
--------------------------- Frame 21 --------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) -----
SNMP:
SNMP: Version = 0
SNMP: Community = administrator
SNMP: Command = Set request
SNMP: Request ID = 717288651
SNMP: Error status = 0 (No error)
SNMP: Error index = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.3.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.3.XXX.YYY ...
SNMP: Value = trap1
SNMP:
-------------------------- Frame 22 ---------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) -----
SNMP:
SNMP: Version = 0
SNMP: Community = administrator
SNMP: Command = Get response
SNMP: Request ID = 717288651
SNMP: Error status = 0 (No error)
SNMP: Error index = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.3.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.3.XXX.YYY ...
SNMP: Value = trap1
SNMP:
.
.
.
-------------------------- Frame 24 ---------------------------
SNMP: ----- Simple Network Management Protocol (Version 1) -----
SNMP:
SNMP: Version = 0
SNMP: Community = public
SNMP: Command = Get response
SNMP: Request ID = 717281434
SNMP: Error status = 0 (No error)
SNMP: Error index = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.1.0} (SynOptics.1.3.2.4.1.0)
SNMP: Value = 2
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.10.0} (SynOptics.1.3.2.4.10.0)
SNMP: Value = [XXX.YYY.170.53]
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.11.0} (SynOptics.1.3.2.4.11.0)
SNMP: Value = [255.255.255.0]
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.12.0} (SynOptics.1.3.2.4.12.0)
SNMP: Value = [XXX.YYY.170.250]
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.13.0} (SynOptics.1.3.2.4.13.0)
SNMP: Value = [XXX.YYY.170.20], Manager
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.14.0} (SynOptics.1.3.2.4.14.0)
SNMP: Value = /tftpboot/syn2.cfg
SNMP: Value = /tftpboot/syn2.cfg
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.15.0} (SynOptics.1.3.2.4.15.0)
SNMP: Value = 2
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.16.0} (SynOptics.1.3.2.4.16.0)
SNMP: Value = 1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.17.0} (SynOptics.1.3.2.4.17.0)
SNMP: Value = 9600 (gauge)
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.18.0} (SynOptics.1.3.2.4.18.0)
SNMP: Value =
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.19.0} (SynOptics.1.3.2.4.19.0)
SNMP: Value =
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.2.0} (SynOptics.1.3.2.4.2.0)
SNMP: Value = 0
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.1.XXX.YYY.170.20}
SynOptics.1.3.2.4.20.1.1.XXX.YYY ...
SNMP: Value = 1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.2.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.2.XXX.YYY ...
SNMP: Value = [XXX.YYY.170.20], Manager
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.20.1.3.XXX.YYY.170.20}
(SynOptics.1.3.2.4.20.1.3.XXX.YYY ...
SNMP: Value = trap1
SNMP:
SNMP: Object = {1.3.6.1.4.1.45.1.3.2.4.21.0}
(SynOptics.1.3.2.4.21.0)
SNMP: Value = 2
SNMP:
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