Hi,
Im using net-snmp 5.7.2.
I want to forward V3 INFORM's from VM1 to VM2.
snmptrapd crashed while forwarding V3 INFORM.

For my user case I have to run snmptrapd on both VM1 and VM2.

VM1 will receive INFORM/TRAP and forward it to VM2.

>From VM1 when I send link-up INFORM to localhost, snmptrapd crashes on VM1.
(Refer failure logs below)

I guess I'm missing some thing in the snmptrapd.conf file's. Tried adding
"enginID" on VM2, but that didnt worked.

Note: Forwardnig V3 TRAP's works with out any issue.

Here is my configuration:

**VM1:**
root@Ubuntu3323:~# cat /tmp/snmptrapd.conf
authCommunity log,net public
snmpTrapdAddr udp:162,udp6:162
forward default 2.2.2.2:162

createUser feroz SHA feroz123 DES feroz123
authUser log,net feroz priv
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 00:50:56:96:61:75
          inet addr:2.2.2.3  Bcast:2.2.2.255  Mask:255.255.255.0
          inet6 addr: fe80::250:56ff:fe96:6175/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:311 errors:0 dropped:72 overruns:0 frame:0
          TX packets:128 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:23507 (23.5 KB)  TX bytes:12265 (12.2 KB)

root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~# snmptrapd -v

NET-SNMP Version:  5.7.2
Web:               http://www.net-snmp.org/
Email:             net-snmp-coders@lists.sourceforge.net

root@Ubuntu3323:~# /usr/sbin/snmptrapd -f -C -c /tmp/snmptrapd.conf  -Lo -d
-Dusm,snmptrapd,sess_async_send &
root@Ubuntu3323:~# snmpinform -Ci -v 3 -a SHA -A feroz123 -x DES -X
feroz123 -l authPriv -u feroz localhost 0  IF-MIB::linkUp


**VM2**

root@Ubuntu3322:~# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 00:50:56:96:ba:0c
          inet addr:2.2.2.2  Bcast:2.2.2.255  Mask:255.255.255.0
          inet6 addr: fe80::250:56ff:fe96:ba0c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:546 errors:0 dropped:92 overruns:0 frame:0
          TX packets:227 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:51478 (51.4 KB)  TX bytes:27986 (27.9 KB)

root@Ubuntu3322:~#
root@Ubuntu3322:~# cat /tmp/snmptrapd.conf
createUser  feroz SHA feroz123 DES feroz123
authUser log feroz priv
root@Ubuntu3322:~#
root@Ubuntu3322:~#
root@Ubuntu3322:~# /usr/sbin/snmptrapd -f -C -c /tmp/snmptrapd.conf -d -Lo
-Dusm,snmptrapd
registered debug token usm, 1




**CRASH LOGS**

root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~# /usr/sbin/snmptrapd -f -C -c /tmp/snmptrapd.conf  -Lo -d
-Dusm,snmptrapd,sess_async_send &
[1] 5065
root@Ubuntu3323:~# registered debug token usm, 1
registered debug token snmptrapd, 1
registered debug token sess_async_send, 1
snmptrapd: Freeing trap handler lists
usmUser: created a new user feroz at 80 00 1F 88 80 D9 2A E1 43 83 55 CE 5F
00 00 00
00
NET-SNMP version 5.7.2

root@Ubuntu3323:~# snmpinform -Ci -v 3 -a SHA -A feroz123 -x DES -X
feroz123 -l authPriv -u feroz localhost 0  IF-MIB::linkUp

Received 81 byte packet from UDP: [127.0.0.1]:37270->[127.0.0.1]:162
0000: 30 4F 02 01  03 30 11 02  04 1C 3E BC  53 02 03 00    0O...0....>.S...
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 25  04 11 80 00    ..........0%....
0048: 1F 88 80 F5  3B 97 25 4D  FE CD 5F 00  00 00 00 04    ....;.%M.._.....
0064: 00 A0 0E 02  04 06 5C 6E  91 02 01 00  02 01 00 30    ......\n.......0
0080: 00                                                    .

usm: USM processing begun...
usm: Unknown Engine ID.
usm: USM processing has begun (offset 56)
usm: getting user
usm: USM processing completed.

Sending 115 bytes to UDP: [127.0.0.1]:37270->[127.0.0.1]:162
0000: 30 71 02 01  03 30 11 02  04 1C 3E BC  53 02 03 00    0q...0....>.S...
0016: FF E3 04 01  00 02 01 03  04 21 30 1F  04 11 80 00    .........!0.....
0032: 1F 88 80 D9  2A E1 43 83  55 CE 5F 00  00 00 00 02    ....*.C.U._.....
0048: 01 01 02 01  04 04 00 04  00 04 00 30  36 04 11 80    ...........06...
0064: 00 1F 88 80  D9 2A E1 43  83 55 CE 5F  00 00 00 00    .....*.C.U._....
0080: 04 00 A8 1F  02 04 06 5C  6E 91 02 01  00 02 01 00    .......\n.......
0096: 30 11 30 0F  06 0A 2B 06  01 06 03 0F  01 01 04 00    0.0...+.........
0112: 41 01 01                                              A..


Received 167 byte packet from UDP: [127.0.0.1]:37270->[127.0.0.1]:162
0000: 30 81 A4 02  01 03 30 11  02 04 1C 3E  BC 52 02 03    0.....0....>.R..
0016: 00 FF E3 04  01 07 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  D9 2A E1 43  83 55 CE 5F  00 00 00 00    .....*.C.U._....
0048: 02 01 01 02  01 04 04 05  66 65 72 6F  7A 04 0C C4    ........feroz...
0064: B8 BB A8 04  02 A2 CA E7  68 89 AB 04  08 00 00 00    ........h.......
0080: 18 EA B6 F8  AF 04 50 00  32 68 04 1D  36 24 54 29    ......P.2h..6$T)
0096: 0A 84 B9 A8  A8 BE D4 0E  D0 29 A6 9E  2C DD 85 54    .........)..,..T
0112: D5 2A D4 64  B8 03 12 5B  3E 89 AC 1D  4A 04 09 B4    .*.d...[>...J...
0128: 5B B2 74 FA  F2 3C 1C CA  22 E5 27 A9  AF F1 7E 42    [.t..<..".'...~B
0144: 66 2E A9 3D  6F 82 71 F8  8C 92 A9 9A  C2 25 97 0B    f..=o.q......%..
0160: 3C 00 FD B3  CD A4 D9                                 <......

usm: USM processing begun...
usm: match on user feroz
usm: Verification succeeded.
usm: USM processing completed.
snmptrapd: input: a6
snmptrapd: Trap OID: IF-MIB::linkUp
snmptrapd: Running auth trap handlers
snmptrapd:auth: Comparing auth types: result=0, request=0, result=1
snmptrapd:auth: Calling VACM for checking phase 0:read
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 1:write
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 2:notify
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 3:log
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 4:execute
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 5:net
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 6:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 7:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Final bitmask auth: 28
snmptrapd: Running pre-global trap handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: print_handler
snmptrapd: v2/3 format
2020-12-07 08:17:11 localhost [UDP: [127.0.0.1]:37270->[127.0.0.1]:162]:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp
snmptrapd: Running trap specific handlers
snmptrapd:lookup: Looking up Trap OID: IF-MIB::linkUp
snmptrapd:lookup: get_traphandler default (0x2002b00)
snmptrapd:auth: Comparing auth types: result=40, request=32, result=1
snmptrapd: forward_handler (2.2.2.2:162)
usm: potentially bootstrapping the USM table from session data
usm: getting user
usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 21 B3 06  28 02 03 00    0>...0...!..(...
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  09 79 67 C3  02 01 00 02  01 00 30 00    .....yg.......0.


Received 115 byte packet from UDP: [2.2.2.2]:162->[0.0.0.0]:54017
0000: 30 71 02 01  03 30 11 02  04 21 B3 06  28 02 03 00    0q...0...!..(...
0016: FF E3 04 01  00 02 01 03  04 21 30 1F  04 11 80 00    .........!0.....
0032: 1F 88 80 83  3E 1C 6F 6C  55 CE 5F 00  00 00 00 02    ....>.olU._.....
0048: 01 01 02 01  26 04 00 04  00 04 00 30  36 04 11 80    ....&......06...
0064: 00 1F 88 80  83 3E 1C 6F  6C 55 CE 5F  00 00 00 00    .....>.olU._....
0080: 04 00 A8 1F  02 04 09 79  67 C3 02 01  00 02 01 00    .......yg.......
0096: 30 11 30 0F  06 0A 2B 06  01 06 03 0F  01 01 04 00    0.0...+.........
0112: 41 01 03                                              A..

usm: USM processing begun...
usm: USM processing completed.
usm: potentially bootstrapping the USM table from session data
usm: USM processing has begun (offset 79)
usm: Encryption successful.
usm: USM processing completed.

Sending 167 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 81 A4 02  01 03 30 11  02 04 1C 3E  BC 52 02 03    0.....0....>.R..
0016: 00 FF E3 04  01 07 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  D9 2A E1 43  83 55 CE 5F  00 00 00 00    .....*.C.U._....
0048: 02 01 01 02  01 04 04 05  66 65 72 6F  7A 04 0C 90    ........feroz...
0064: AF AB 6D D8  B1 AE C9 14  97 A8 AD 04  08 00 00 00    ..m.............
0080: 01 1B A4 5C  BF 04 50 AC  89 91 EC DE  90 46 4D 20    ...\..P......FM
0096: 05 86 A8 5A  6E D3 24 DE  22 D2 8E 6E  6D DD AD 51    ...Zn.$."..nm..Q
0112: F6 CC F8 06  10 AA 05 C4  2A E3 B2 BF  69 92 E2 9B    ........*...i...
0128: BC 6D 75 40  71 6C 60 B2  E5 48 2A E4  18 A9 DD D8    .mu@ql`..H*.....
0144: 0C 2F C8 9C  BB 94 9F FD  DA B8 63 5C  62 8B 8C 47    ./........c\b..G
0160: 5C AA 0A FF  96 85 42                                 \.....B

snmptrapd: Running global handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: notification_handler
usm: USM processing has begun (offset 79)
snmpinform: Timeout
[1]+  Segmentation fault      (core dumped) /usr/sbin/snmptrapd -f -C -c
/tmp/snmptrapd.conf -Lo -d -Dusm,snmptrapd,sess_async_send
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#





Sending 167 bytes to UDP: [127.0.0.1]:35038->[127.0.0.1]:162
0000: 30 81 A4 02  01 03 30 11  02 04 66 67  CF 5C 02 03    0.....0...fg.\..
0016: 00 FF E3 04  01 03 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  10 B1 C3 57  AE 4E CE 5F  00 00 00 00    .......W.N._....
0048: 02 01 01 02  01 23 04 05  66 65 72 6F  7A 04 0C 0A    .....#..feroz...
0064: D3 35 8E 3E  0C 12 50 07  A4 8B 51 04  08 00 00 00    .5.>..P...Q.....
0080: 01 64 2C B4  A3 04 50 B7  7B 7F 09 F5  4D F1 2B 82    .d,...P.{...M.+.
0096: 77 96 E2 34  7C 73 DC 18  1F 03 31 5D  19 12 E7 08    w..4|s....1]....
0112: D8 F5 18 11  86 79 4B E5  21 06 92 CF  84 E3 2C 58    .....yK.!.....,X
0128: 1C F2 24 E2  6D E0 BA 2B  3A 40 52 0E  C3 F3 E1 56    ..$.m..+:@R....V
0144: 05 24 E1 72  7E C7 F8 C9  68 5A 64 1A  E3 1D 03 E1    .$.r~...hZd.....
0160: 3D 08 FF 5C  B5 0D 85                                 =..\...


Received 167 byte packet from UDP: [127.0.0.1]:35038->[127.0.0.1]:162
0000: 30 81 A4 02  01 03 30 11  02 04 66 67  CF 5D 02 03    0.....0...fg.]..
0016: 00 FF E3 04  01 07 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  10 B1 C3 57  AE 4E CE 5F  00 00 00 00    .......W.N._....
0048: 02 01 01 02  01 0F 04 05  66 65 72 6F  7A 04 0C AB    ........feroz...
0064: 1B DD F6 25  0E DE E1 FB  B4 63 7B 04  08 00 00 00    ...%.....c{.....
0080: 13 61 87 59  E8 04 50 6D  D2 4D 66 16  DF E9 62 A0    .a.Y..Pm.Mf...b.
0096: 94 D2 E5 4C  40 39 AD 07  1D F4 E6 BA  AB E0 82 11    ...L@9..........
0112: 44 9C AF BD  EC A5 47 DE  15 8F 16 1C  E0 0B AE 52    D.....G........R
0128: B7 82 F3 FF  F6 D8 51 AF  B9 BD FF 90  51 A5 AA 20    ......Q.....Q..
0144: 9D 16 C8 8A  61 7A 98 4F  52 9A 2A 6D  F7 4B 2E CA    ....az.OR.*m.K..
0160: CC E6 F9 9D  A4 5F 1A                                 ....._.

usm: USM processing begun...
usm: match on user feroz
usm: Verification succeeded.
usm: USM processing completed.
snmptrapd: input: a6
snmptrapd: Trap OID: IF-MIB::linkUp
snmptrapd: Running auth trap handlers
snmptrapd:auth: Comparing auth types: result=40, request=0, result=1
snmptrapd:auth: Calling VACM for checking phase 0:read
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 1:write
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 2:notify
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 3:log
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 4:execute
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 5:net
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 6:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 7:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Final bitmask auth: 28
snmptrapd: Running pre-global trap handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: print_handler
snmptrapd: v2/3 format
2020-12-07 07:48:32 localhost [UDP: [127.0.0.1]:35038->[127.0.0.1]:162]:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp
snmptrapd: Running trap specific handlers
snmptrapd:lookup: Looking up Trap OID: IF-MIB::linkUp
snmptrapd:lookup: get_traphandler default (0x10b4b00)
snmptrapd:auth: Comparing auth types: result=40, request=32, result=1
snmptrapd: forward_handler (2.2.2.2:162)
usm: potentially bootstrapping the USM table from session data
usm: getting user
usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  99 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9A 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9B 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9C 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9D 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9E 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AB  02 01 00 02  01 00 30 00    ...._.^.......0.

Forward failed: Timeout
snmptrapd: Running global handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: notification_handler
usm: USM processing has begun (offset 79)
usm: Encryption successful.
usm: USM processing completed.

Sending 167 bytes to UDP: [127.0.0.1]:35038->[127.0.0.1]:162
0000: 30 81 A4 02  01 03 30 11  02 04 66 67  CF 5D 02 03    0.....0...fg.]..
0016: 00 FF E3 04  01 03 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  10 B1 C3 57  AE 4E CE 5F  00 00 00 00    .......W.N._....
0048: 02 01 01 02  01 29 04 05  66 65 72 6F  7A 04 0C BC    .....)..feroz...
0064: 8B 54 35 C1  F3 3F 79 FA  FC 0D 35 04  08 00 00 00    .T5..?y...5.....
0080: 01 64 2C B4  A4 04 50 EA  BD A9 AF 5F  55 3A D3 F3    .d,...P...._U:..
0096: BC 37 FC B1  E1 D3 89 C4  EC AB 19 BC  6F 57 64 8F    .7..........oWd.
0112: FC 87 7D B8  BB 78 C4 50  78 0F F2 F4  7C A6 BE 57    ..}..x.Px...|..W
0128: E3 3D A6 53  F2 CC 9B 94  B9 CA 09 15  16 64 B5 59    .=.S.........d.Y
0144: DA 44 58 AE  AB 8B 57 70  56 FB 72 C3  88 17 35 AC    .DX...WpV.r...5.
0160: 11 D4 0C C9  5A 95 C3                                 ....Z..


Received 167 byte packet from UDP: [127.0.0.1]:35038->[127.0.0.1]:162
0000: 30 81 A4 02  01 03 30 11  02 04 66 67  CF 5E 02 03    0.....0...fg.^..
0016: 00 FF E3 04  01 07 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  10 B1 C3 57  AE 4E CE 5F  00 00 00 00    .......W.N._....
0048: 02 01 01 02  01 10 04 05  66 65 72 6F  7A 04 0C 33    ........feroz..3
0064: C2 D0 2E EF  34 C9 98 3D  47 47 14 04  08 00 00 00    ....4..=GG......
0080: 13 61 87 59  E9 04 50 6B  C0 0F 46 6C  B4 A3 48 91    .a.Y..Pk..Fl..H.
0096: 70 AE 75 A6  7C 74 1D 66  12 C3 65 59  8B E6 CB 7E    p.u.|t.f..eY...~
0112: 78 1B B9 E7  B0 02 44 39  46 11 76 08  A5 69 79 77    x.....D9F.v..iyw
0128: 17 7D 8C BB  9D B9 E0 3E  BC 8D 05 69  67 C8 2B A4    .}.....>...ig.+.
0144: DB 1D 78 B1  41 6E DE 52  96 F8 BB 65  D2 1A E8 0A    ..x.An.R...e....
0160: 3D 3C 60 F7  3C CB 86                                 =<`.<..

usm: USM processing begun...
usm: match on user feroz
usm: Verification succeeded.
usm: USM processing completed.
snmptrapd: input: a6
snmptrapd: Trap OID: IF-MIB::linkUp
snmptrapd: Running auth trap handlers
snmptrapd:auth: Comparing auth types: result=40, request=0, result=1
snmptrapd:auth: Calling VACM for checking phase 0:read
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 1:write
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 2:notify
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 3:log
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 4:execute
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 5:net
snmptrapd:auth:   result: authorized
snmptrapd:auth: Calling VACM for checking phase 6:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Calling VACM for checking phase 7:(null)
snmptrapd:auth:   result: not authorized
snmptrapd:auth: Final bitmask auth: 28
snmptrapd: Running pre-global trap handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: print_handler
snmptrapd: v2/3 format
2020-12-07 07:48:38 localhost [UDP: [127.0.0.1]:35038->[127.0.0.1]:162]:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp
snmptrapd: Running trap specific handlers
snmptrapd:lookup: Looking up Trap OID: IF-MIB::linkUp
snmptrapd:lookup: get_traphandler default (0x10b4b00)
snmptrapd:auth: Comparing auth types: result=40, request=32, result=1
snmptrapd: forward_handler (2.2.2.2:162)
usm: potentially bootstrapping the USM table from session data
usm: getting user
usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  9F 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AC  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  A0 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AC  02 01 00 02  01 00 30 00    ...._.^.......0.

usm: USM processing has begun (offset 22)
usm: getting user
usm: Failed to find engine data.
usm: USM processing completed.

Sending 64 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 3E 02 01  03 30 11 02  04 0B C8 44  A1 02 03 00    0>...0.....D....
0016: FF E3 04 01  04 02 01 03  04 10 30 0E  04 00 02 01    ..........0.....
0032: 00 02 01 00  04 00 04 00  04 00 30 14  04 00 04 00    ..........0.....
0048: A0 0E 02 04  5F 1C 5E AC  02 01 00 02  01 00 30 00    ...._.^.......0.


Received 115 byte packet from UDP: [2.2.2.2]:162->[0.0.0.0]:32924
0000: 30 71 02 01  03 30 11 02  04 0B C8 44  A1 02 03 00    0q...0.....D....
0016: FF E3 04 01  00 02 01 03  04 21 30 1F  04 11 80 00    .........!0.....
0032: 1F 88 80 7D  B4 C8 4B E2  4E CE 5F 00  00 00 00 02    ...}..K.N._.....
0048: 01 01 02 01  00 04 00 04  00 04 00 30  36 04 11 80    ...........06...
0064: 00 1F 88 80  7D B4 C8 4B  E2 4E CE 5F  00 00 00 00    ....}..K.N._....
0080: 04 00 A8 1F  02 04 5F 1C  5E AC 02 01  00 02 01 00    ......_.^.......
0096: 30 11 30 0F  06 0A 2B 06  01 06 03 0F  01 01 04 00    0.0...+.........
0112: 41 01 01                                              A..

usm: USM processing begun...
usm: USM processing completed.
usm: potentially bootstrapping the USM table from session data
usm: USM processing has begun (offset 79)
usm: Encryption successful.
usm: USM processing completed.

Sending 167 bytes to UDP: [2.2.2.2]:162->[0.0.0.0]:0
0000: 30 81 A4 02  01 03 30 11  02 04 66 67  CF 5E 02 03    0.....0...fg.^..
0016: 00 FF E3 04  01 07 02 01  03 04 3A 30  38 04 11 80    ..........:08...
0032: 00 1F 88 80  10 B1 C3 57  AE 4E CE 5F  00 00 00 00    .......W.N._....
0048: 02 01 01 02  01 2B 04 05  66 65 72 6F  7A 04 0C 6B    .....+..feroz..k
0064: 96 6B 77 09  CA 14 0D BD  3F 44 4E 04  08 00 00 00    .kw.....?DN.....
0080: 01 64 2C B4  A5 04 50 A0  36 6F 33 46  4B C4 A7 3D    .d,...P.6o3FK..=
0096: 93 40 CA 77  A5 6B 3E 98  66 FC 4B D1  5A 65 69 68    .@.w.k>.f.K.Zeih
0112: 25 EB B8 C2  50 66 3B D4  FB 24 56 C7  1F 48 F0 70    %...Pf;..$V..H.p
0128: 60 61 B1 7D  B1 6A 18 F2  DE 93 83 65  61 C2 60 CE    `a.}.j.....ea.`.
0144: 07 75 E3 9D  B2 8A AC 15  5F C7 62 6E  E0 E5 96 6C    .u......_.bn...l
0160: 30 FE A2 55  6A DA BB                                 0..Uj..

snmptrapd: Running global handlers
snmptrapd:auth: Comparing auth types: result=40, request=8, result=1
snmptrapd: notification_handler
usm: USM processing has begun (offset 79)
usm: Failed to find engine data.

[1]+  Segmentation fault      (core dumped) /usr/sbin/snmptrapd -f -C -c
/tmp/snmptrapd.conf -Lo -d -Dusm,snmptrapd,sess_async_send
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#
root@Ubuntu3323:~#









-- 
Regards,
Feroz Ahmed
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