On Fri, Mar 25, 2011 at 12:57 PM, Mikhail Kulinich <tyson...@gmail.com>wrote:
> Consider the following dump as a Response to a Get Request:
>
> Received 125 bytes from UDP: [127.0.0.1]:161->[0.0.0.0]
> 0000: 30 7B 02 01 03 30 11 02 04 5B 70 9B 75 02 03 00
> 0{...0...[p.u...
> 0016: FF E3 04 01 01 02 01 03 04 2E 30 2C 04 0D 80 00
> ..........0,....
> 0032: 1F 88 80 82 0B 53 2D 67 01 8A 4D 02 01 01 02 03
> .....S-g..M.....
> 0048: 02 7B 92 04 03 77 65 73 04 0C DF 8B 2A FE 4A C5
> .{...wes....*.J.
> 0064: 4C 33 63 A6 2C C8 04 00 30 33 04 0D 80 00 1F 88
> L3c.,...03......
> 0080: 80 82 0B 53 2D 67 01 8A 4D 04 00 A2 20 02 04 67 ...S-g..M...
> ..g
> 0096: DB 56 C4 02 01 00 02 01 00 30 12 30 10 06 0A 2B
> .V.......0.0...+
> 0112: 06 01 02 01 5C 01 01 01 00 42 02 03 E8 ....\....B...
>
> NOTIFICATION-LOG-MIB::nlmConfigGlobalEntryLimit.0 = Gauge32: 1000
>
> It was produced with the following command:
> $ snmpget -v3 -n "" -c public -u wes -a md5 -A setup_passphrase -l
> authNoPriv -d localhost nlmConfigGlobalEntryLimit.0
>
> While decoding (with my own tool) the message above, I met a constraint
> error with ASN.1 describing SNMPv3 message.
> The actual issue with request-id parameter inside PDU (see RFC 3416 for
> ASN.1 definitions)
>
> Received value (from dump):
> request-id = 1742427844
>
> ASN.1:
> request-id INTEGER (-214783648..214783647)
>
> You can see that may be in number = 214783647, 4 is missed. I.e.: should be
> the following: 2147_4_83647
> Is it error in RFC or in SNMP daemon implementation?
>
Good catch. Seems like an obvious bug in the RFC to me. Please report it to
the IETF via this page: http://www.rfc-editor.org/errata.php.
Bart.
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