Getting some unreadable data, even with 'use_sprint_value=True'. (Contains Binary) is Returned

[rtkrwilson]

When I issue a walk using a Session, I get the following output:
<SNMPVariable value='"'}" (contains binary)' (oid='.1.3.6.1.2.1.3.1.1.2.10.1.10.9.151', oid_index='139', snmp_type='OCTETSTR')>

Running an SNMPWALK against the same OID produces the following:
snmpwalk -v2c -c <community_string> <ip_address> .1.3.6.1.2.1.3.1.1.2.10
SNMPv2-SMI::mib-2.3.1.1.2.10.1.10.9.151.139 = STRING: "?'???}"

I can produce the desired result by adding the -Ox flag to my snmpwalk call:
snmpwalk -Ox -v2c -c <community_string> <ip_address> .1.3.6.1.2.1.3.1.1.2.10
SNMPv2-SMI::mib-2.3.1.1.2.10.1.10.9.151.139 = Hex-STRING: B8 27 EB EF C8 7D

Is there a way that I can add a similar flag to my Session instance?

[nskalis]

hi. did it happen to figure out this one ? (I am having the same issue)

[rtkrwilson]

I found a way around it, but it doesn ‘t seem like the use_sprint_value works for a SNMPWalk, even though it’s coded to do so in the C library. To fix, set use_sprint_value to false, and if your return contains binary (usually for MAC addresses), run the return through a function like this: def mac_bin_to_hex(inc_bin_mac_address): octets = [ord(c) for c in inc_bin_mac_address] return "{:02X}:{:02X}:{:02X}:{:02X}:{:02X}:{:02X}".format(*octets) This works for me. It’s not as elegant as fixing the library, but C is not my strong suit.