Problem with snmptrap

Anyone seen anything like this before using snmptrap? I have an app running on
Solaris8 NET-SNMP 5.4.2.1 (I know it's old - that system is going away) which seems to
work correctly, but under Solaris 10/NET-SNMP V5.6.1rc2 it fails. It appears that snmptrap
is using the destination as the source and leaving the destination blank according
to the -d packet dump.

Using NET-SNMP V5.4.2.1 under Solaris 8, this seems to work OK:
$ uname -a
SunOS tcnetops 5.8 Generic_117350-38 sun4u sparc SUNW,Sun-Fire-V440
$ /usr/local/bin/snmptrap -V
NET-SNMP version: 5.4.2.1

trap_dest=172.22.227.66
sourceIP=10.102.16.26
eventId="EvID"
eventDescr="EvDesc"
eventSubject="EvSubj"
/usr/local/bin/snmptrap  -v1 -d -c public $trap_dest 1.3.6.1.4.1.33544.1 $sourceIP 6 1 "" \
        1.3.6.1.4.1.33544.1.1 s "$eventId" \
        1.3.6.1.4.1.33544.1.2 s "$eventDescr" \
        1.3.6.1.4.1.33544.1.3 s "$eventSubject"

Sending 110 bytes to UDP: [0.0.0.0]->[172.22.227.66]:162
0000: 30 6C 02 01  00 04 06 70  75 62 6C 69  63 A4 5F 06    0l.....public¤_.
0016: 09 2B 06 01  04 01 82 86  08 01 40 04  0A 66 10 1A    [email protected]..
0032: 02 01 06 02  01 01 43 04  25 A6 F7 1B  30 40 30 12    ......C.%¦÷.0@0.
0048: 06 0A 2B 06  01 04 01 82  86 08 01 01  04 04 45 76    ..+...........Ev
0064: 49 44 30 14  06 0A 2B 06  01 04 01 82  86 08 01 02    ID0...+.........
0080: 04 06 45 76  44 65 73 63  30 14 06 0A  2B 06 01 04    ..EvDesc0...+...
0096: 01 82 86 08  01 03 04 06  45 76 53 75  62 6A          ........EvSubj


On 172.22.227.66 (running HP OpenView/NNM) the trap is received as expected:
1344974076 2 Tue Aug 14 15:54:36 2012 omt2netops.troweprice.com - Received event .1.3.6.1.4.1.33544.1.0.1 (enterprise:.1.3.6.1.4.1.33544.1 generic:6 specific:1), no format in trapd.conf. 3 args: [1] private.enterprises.33544.1.1 (OctetString): EvID  [2] private.enterprises.33544.1.2 (OctetString): EvDesc  [3] private.enterprises.33544.1.3 (OctetString): EvSubj;1 .1.3.6.1.4.1.33544.1.0.1 0

================================

The same command executed under 5.6.1rc2 on Solaris 10 doesn't seem to work (i.e., no trap is received).
NOTE the difference in the packet dump where it seems to have used the destination as the source!

$ uname -a
SunOS omt2netops 5.10 Generic_142900-02 sun4v sparc SUNW,SPARC-Enterprise-T5120
$ snmptrap -V
NET-SNMP version: 5.6.1.rc2

trap_dest=172.22.227.66
sourceIP=10.102.16.26
eventId="EvID"
eventDescr="EvDesc"
eventSubject="EvSubj"


$ /usr/local/bin/snmptrap  -v1 -d -c public $trap_dest 1.3.6.1.4.1.33544.1 $sourceIP 6 1 "" \
>       1.3.6.1.4.1.33544.1.1 s "$eventId" \
>       1.3.6.1.4.1.33544.1.2 s "$eventDescr" \
>       1.3.6.1.4.1.33544.1.3 s "$eventSubject"

Sending 111 bytes to UDP: [172.22.227.66]:161->[0.0.0.0]:0
0000: 30 6D 02 01  00 04 06 70  75 62 6C 69  63 A4 60 06    0m.....public.`.
0016: 09 2B 06 01  04 01 82 86  08 01 40 04  0A 66 10 1A    [email protected]..
0032: 02 01 06 02  01 01 43 05  00 A2 35 3C  8B 30 40 30    ......C...5<.0@0
0048: 12 06 0A 2B  06 01 04 01  82 86 08 01  01 04 04 45    ...+...........E
0064: 76 49 44 30  14 06 0A 2B  06 01 04 01  82 86 08 01    vID0...+........
0080: 02 04 06 45  76 44 65 73  63 30 14 06  0A 2B 06 01    ...EvDesc0...+..
0096: 04 01 82 86  08 01 03 04  06 45 76 53  75 62 6A       .........EvSubj


_________________________
Almon (Al) Sorrell
Global Business Solutions and Technology Services
Corporate Network Services | Network Engineering Consultant

T. Rowe Price
4515 Painters Mill Road, TE9008
Owings Mills, MD 21117
Phone: (410) 345-3042  Cell:(443) 527-2398 Fax:(410) 345-3135
Email: [email protected]





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