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Whoops - typo on the version.
value=1 is snmpv2c
https://gitlab.com/wireshark/wireshark/-/blob/master/epan/dissectors/packet-snmp.c#L2115
static const value_string snmp_Version_vals[] = {
{ 0, "version-1" },
{ 1, "v2c" },
{ 2, "v2u" },
{ 3, "snmpv3" },
{ 0, NULL }
};
Not sure th
Hi,
What you’re looking at is the SNMP encoding according to the Basic Encoding
Rules[2] (BER). These octets define the BER structure.
For example a 64 octet SNMPv3 message starts as such:
SNMPv3Message ::= SEQUENCE {
30 3E
msgVersion INTEGER ( 0 .. 2147483647 ),
02 01 03
Where 30 defi
SNMP (https://datatracker.ietf.org/doc/html/rfc1157) uses ASN.1 BER (
https://en.wikipedia.org/wiki/X.690#BER_encoding) to define the data.
"These types of encodings are commonly called type–length–value (TLV)
encodings"
(See https://datatracker.ietf.org/doc/html/rfc1592 for a packet diagram)
It
Hi Wireshark Team,
Please let me know
what does first 4 bytes in SNMP Data indicate
because I could see from 5th byte I see version and other things
Regards
Chandramohan
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