new paste: snmpgetnext -dDump -v 2c -c public localhost ipAdEntNetmask Sending 44 bytes to UDP: [127.0.0.1]:161 0000: 30 2A 02 01 01 04 06 70 75 62 6C 69 63 A1 1D 02 0*.....public... 0016: 04 27 E5 CA 95 02 01 00 02 01 00 30 0F 30 0D 06 .'.........0.0.. 0032: 09 2B 06 01 02 01 04 14 01 03 05 00 .+.......... Received 53 bytes from UDP: [127.0.0.1]:161 0000: 30 33 02 01 01 04 06 70 75 62 6C 69 63 A2 26 02 03.....public.&. 0016: 04 27 E5 CA 95 02 01 00 02 01 00 30 18 30 16 06 .'.........0.0.. 0032: 0E 2B 06 01 02 01 04 14 01 03 0A 00 00 81 17 40 .+.............@ 0048: 04 FF FF FF 00 ..... IP-MIB::ipAdEntNetMask.10.0.0.151 = IpAddress: 255.255.255.0 code i'm utilizing: char *oids[OIDS]; /* For variable OID instances */ char var_buffer[MAX_MSG]; database *data; int i; /* SNMPv2-MIB */ oids[0]="sysDescr.0"; oids[1]="sysUpTime.0"; oids[2]="sysContact.0"; oids[3]="sysName.0"; oids[4]="sysLocation.0"; /* IP-MIB */ oids[5]="ipForwarding.0"; snprintf(var_buffer,sizeof(var_buffer),"ipAdEntNetmask.",ip_addr); oids[6]=var_buffer; /* IF-MIB */ oids[7]="ifNumber.0"; dump of ipForwarding: snmpgetnext -Ddump localhost ipForwarding.0 dumph_send: SNMPv3 Message dumph_send: PDU-GET dumph_send: error index dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: error status dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: request_id dumpx_send: 02 04 55 BC CE 79 dumpv_send: Integer: 1438436985 (0x55BCCE79) dumph_send: ScopedPdu dumph_send: contextName dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: contextEngineID dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgSecurityModel dumpx_send: 02 01 03 dumpv_send: Integer: 3 (0x03) dumph_send: msgFlags dumpx_send: 04 01 04 dumpv_send: String: . dumph_send: msgMaxSize dumpx_send: 02 03 00 FF E3 dumpv_send: Integer: 65507 (0xFFE3) dumph_send: msgID dumpx_send: 02 04 73 F3 43 72 dumpv_send: Integer: 1945322354 (0x73F34372) dumph_send: SNMP Version Number dumpx_send: 02 01 03 dumpv_send: Integer: 3 (0x03) dumph_send: SM msgSecurityParameters dumph_send: msgPrivacyParameters dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgAuthenticationParameters dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgUserName dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgAuthoritativeEngineTime dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: msgAuthoritativeEngineBoots dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: msgAuthoritativeEngineID dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_recv: SNMPv3 Message dumph_recv: SNMP Version Number dumpx_recv: 02 01 03 dumpv_recv: Integer: 3 (0x03) dumph_recv: msgGlobalData dumph_recv: msgID dumpx_recv: 02 04 73 F3 43 72 dumpv_recv: Integer: 1945322354 (0x73F34372) dumph_recv: msgMaxSize dumpx_recv: 02 03 00 FF E3 dumpv_recv: Integer: 65507 (0xFFE3) dumph_recv: msgFlags dumpx_recv: 04 01 00 dumpv_recv: String: . dumph_recv: msgSecurityModel dumpx_recv: 02 01 03 dumpv_recv: Integer: 3 (0x03) dumph_recv: SM msgSecurityParameters dumph_recv: msgAuthoritativeEngineID dumpx_recv: 04 0D 80 00 1F 88 80 17 97 DF 67 45 58 A5 1D dumpv_recv: String: ........gEX.. dumph_recv: msgAuthoritativeEngineBoots dumpx_recv: 02 01 0B dumpv_recv: Integer: 11 (0x0B) dumph_recv: msgAuthoritativeEngineTime dumpx_recv: 02 02 12 4F dumpv_recv: Integer: 4687 (0x124F) dumph_recv: msgUserName dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: msgAuthenticationParameters dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: msgPrivacyParameters dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: ScopedPDU dumph_recv: contextEngineID dumpx_recv: 04 0D 80 00 1F 88 80 17 97 DF 67 45 58 A5 1D dumpv_recv: String: ........gEX.. dumph_recv: contextName dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: PDU-REPORT dumph_recv: request_id dumpx_recv: 02 04 55 BC CE 79 dumpv_recv: Integer: 1438436985 (0x55BCCE79) dumph_recv: error status dumpx_recv: 02 01 00 dumpv_recv: Integer: 0 (0x00) dumph_recv: error index dumpx_recv: 02 01 00 dumpv_recv: Integer: 0 (0x00) dumph_recv: VarBindList dumph_recv: VarBind dumph_recv: Name dumpx_recv: 06 0A 2B 06 01 06 03 0F 01 01 04 00 dumpv_recv: ObjID: SNMP-USER-BASED-SM-MIB::usmStatsUnknownEngineIDs.0 dumph_recv: Value dumpx_recv: 41 01 03 dumpv_recv: UInteger: 3 (0x03) snmpgetnext: No securityName specified dump of ipAdEntNetmask: snmpgetnext -Ddump localhost ipAdEntNetMask dumph_send: SNMPv3 Message dumph_send: PDU-GET dumph_send: error index dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: error status dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: request_id dumpx_send: 02 04 27 E0 0E 8A dumpv_send: Integer: 668995210 (0x27E00E8A) dumph_send: ScopedPdu dumph_send: contextName dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: contextEngineID dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgSecurityModel dumpx_send: 02 01 03 dumpv_send: Integer: 3 (0x03) dumph_send: msgFlags dumpx_send: 04 01 04 dumpv_send: String: . dumph_send: msgMaxSize dumpx_send: 02 03 00 FF E3 dumpv_send: Integer: 65507 (0xFFE3) dumph_send: msgID dumpx_send: 02 04 23 41 75 86 dumpv_send: Integer: 591492486 (0x23417586) dumph_send: SNMP Version Number dumpx_send: 02 01 03 dumpv_send: Integer: 3 (0x03) dumph_send: SM msgSecurityParameters dumph_send: msgPrivacyParameters dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgAuthenticationParameters dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgUserName dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_send: msgAuthoritativeEngineTime dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: msgAuthoritativeEngineBoots dumpx_send: 02 01 00 dumpv_send: Integer: 0 (0x00) dumph_send: msgAuthoritativeEngineID dumpx_send: 04 00 dumpv_send: String: [NULL] dumph_recv: SNMPv3 Message dumph_recv: SNMP Version Number dumpx_recv: 02 01 03 dumpv_recv: Integer: 3 (0x03) dumph_recv: msgGlobalData dumph_recv: msgID dumpx_recv: 02 04 23 41 75 86 dumpv_recv: Integer: 591492486 (0x23417586) dumph_recv: msgMaxSize dumpx_recv: 02 03 00 FF E3 dumpv_recv: Integer: 65507 (0xFFE3) dumph_recv: msgFlags dumpx_recv: 04 01 00 dumpv_recv: String: . dumph_recv: msgSecurityModel dumpx_recv: 02 01 03 dumpv_recv: Integer: 3 (0x03) dumph_recv: SM msgSecurityParameters dumph_recv: msgAuthoritativeEngineID dumpx_recv: 04 0D 80 00 1F 88 80 17 97 DF 67 45 58 A5 1D dumpv_recv: String: ........gEX.. dumph_recv: msgAuthoritativeEngineBoots dumpx_recv: 02 01 0B dumpv_recv: Integer: 11 (0x0B) dumph_recv: msgAuthoritativeEngineTime dumpx_recv: 02 02 13 03 dumpv_recv: Integer: 4867 (0x1303) dumph_recv: msgUserName dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: msgAuthenticationParameters dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: msgPrivacyParameters dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: ScopedPDU dumph_recv: contextEngineID dumpx_recv: 04 0D 80 00 1F 88 80 17 97 DF 67 45 58 A5 1D dumpv_recv: String: ........gEX.. dumph_recv: contextName dumpx_recv: 04 00 dumpv_recv: String: dumph_recv: PDU-REPORT dumph_recv: request_id dumpx_recv: 02 04 27 E0 0E 8A dumpv_recv: Integer: 668995210 (0x27E00E8A) dumph_recv: error status dumpx_recv: 02 01 00 dumpv_recv: Integer: 0 (0x00) dumph_recv: error index dumpx_recv: 02 01 00 dumpv_recv: Integer: 0 (0x00) dumph_recv: VarBindList dumph_recv: VarBind dumph_recv: Name dumpx_recv: 06 0A 2B 06 01 06 03 0F 01 01 04 00 dumpv_recv: ObjID: SNMP-USER-BASED-SM-MIB::usmStatsUnknownEngineIDs.0 dumph_recv: Value dumpx_recv: 41 01 04 dumpv_recv: UInteger: 4 (0x04) snmpgetnext: No securityName specified