RE: AgentX problems

Hi,

Dave wrote:

> Hmmm....
>    I'm a bit rusty at decoding AgentX packets, but I'm not at all sure that this registration request looks right:
> Can you please try the same thing, but running the agent as
>
>   snmpd -f -Le -Ddump
>
> It's only necessary to post the second pair of AgentX packets (the Register/Response pair).

this is the simple registration (not the one with the table row).
I can send the output of the other too, if necessary:

Received 52 bytes from TCP: [127.0.0.1]:2913
0000: 01 03 08 00  06 00 00 00  00 00 00 00  01 00 00 00    ................
0016: 20 00 00 00  06 00 00 00  70 75 62 6C  69 63 00 00     .......public..
0032: 05 7F 00 00  03 04 00 00  01 00 00 00  CC 12 00 00    ............╠...
0048: 01 00 00 00                                           ....

dumph_recv: AgentX Header
dumph_recv:   Version
dumpx_recv:    01
dumpv_recv:      Version:       1
dumph_recv:   Command
dumpx_recv:    03
dumpv_recv:      Command:       3 (Register)
dumph_recv:   Flags
dumpx_recv:    08
dumpv_recv:      Flags: 0x8
dumph_recv:   Reserved Byte
dumpx_recv:    00
dumpv_recv:      Reserved:      0x0
dumph_recv:   Session ID
dumpx_recv:    06 00 00 00
dumpv_recv:      Integer:       6 (0x06)
dumph_recv:   Transaction ID
dumpx_recv:    00 00 00 00
dumpv_recv:      Integer:       0 (0x00)
dumph_recv:   Packet ID
dumpx_recv:    01 00 00 00
dumpv_recv:      Integer:       1 (0x01)
dumph_recv:   Payload Length
dumpx_recv:    20 00 00 00
dumpv_recv:      Integer:       32 (0x20)
dumph_recv:   Context
dumpx_recv:    06 00 00 00
dumpv_recv:      Integer:       6 (0x06)
dumpx_recv:    06 00 00 00 70 75 62 6C 69 63 00 00
dumpv_recv:    String: public.
dumph_recv:   PDU
dumph_recv:       Registration Header
dumpx_recv:        05
dumpv_recv:          Timeout:           5
dumpx_recv:        7F
dumpv_recv:          Priority:          127
dumpx_recv:        00
dumpv_recv:          Range Sub-Id:      0
dumph_recv:       Registration OID
dumph_recv:         OID Header
dumpx_recv:          03 04 00 00
dumpv_recv:            # subids:        3 (0x03)
dumpv_recv:             prefix:         4 (0x04)
dumpv_recv:             inclusive:      0 (0x00)
dumph_recv:         OID Segments
dumpx_recv:          01 00 00 00
dumpv_recv:            Integer: 1 (0x01)
dumpx_recv:          CC 12 00 00
dumpv_recv:            Integer: 4812 (0x12CC)
dumpx_recv:          01 00 00 00
dumpv_recv:            Integer: 1 (0x01)
dumpv_recv:         OID: SNMPv2-SMI::enterprises.4812.1
dumph_send: AgentX Header
dumpx_send:  01 12 00 00
dumpv_send:    Version: 1
dumpv_send:     Command:        18 (Response)
dumpv_send:     Flags:  00
dumph_send:   Session ID
dumpx_send:    06 00 00 00
dumpv_send:      Integer:       6 (0x06)
dumph_send:   Transaction ID
dumpx_send:    00 00 00 00
dumpv_send:      Integer:       0 (0x00)
dumph_send:   Request ID
dumpx_send:    01 00 00 00
dumpv_send:      Integer:       1 (0x01)
dumph_send:   Dummy Length :-(
dumpx_send:    00 00 00 00
dumpv_send:      Integer:       0 (0x00)
dumph_send: AgentX Payload
dumpx_send:  F7 04 00 00
dumpv_send:    Integer: 1271 (0x4F7)
dumph_send:   Response
dumpx_send:    F7 04 00 00
dumpv_send:      sysUpTime:     1271
dumpx_send:  00 00
dumpv_send:    Short:   0 (0x00)
dumpx_send:  00 00
dumpv_send:    Short:   0 (0x00)
dumph_send:   Response errors
dumpx_send:    00 00 00 00
dumpv_send:      errstat:       0
dumpv_send:       errindex:     0
dumph_send:   Get* Variable List
dumph_send:     VarBind
dumph_send:       type
dumpx_send:        05 00
dumpv_send:          Short:     5 (0x05)
dumph_send:       name
dumpv_send:         OID: SNMPv2-SMI::enterprises.4812.1
dumph_send:         OID Header
dumpx_send:          03 04 00 00
dumpv_send:            # subids:        3 (0x03)
dumpv_send:             prefix: 4 (0x04)
dumpv_send:             inclusive:      0 (0x00)
dumph_send:         OID Segments
dumpx_send:          01 00 00 00
dumpv_send:            Integer: 1 (0x01)
dumpx_send:          CC 12 00 00
dumpv_send:            Integer: 4812 (0x12CC)
dumpx_send:          01 00 00 00
dumpv_send:            Integer: 1 (0x01)
dumph_send:       value
dumpx_send:1C 00 00 00
dumpv_send:  Integer:   28 (0x1C)

Sending 48 bytes to TCP: [127.0.0.1]:2913
0000: 01 12 00 00  06 00 00 00  00 00 00 00  01 00 00 00    ................
0016: 1C 00 00 00  F7 04 00 00  00 00 00 00  05 00 00 00    ....≈...........
0032: 03 04 00 00  01 00 00 00  CC 12 00 00  01 00 00 00    ........╠.......

In comparision to the JAgentX implementation, NET-SNMP sends additional
data in the open and register responses. What does the value 28 mean?

Andreas


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