Check Incoming Requests
This scenario shows how to configure a user to receive incoming requests in SNMPv3 using VRFs.
In addition, the SNMP walk and table commands are checked.
Test SNMP Walk With VRFs
Description
Using VRFs, a user is configured in DUT0 and the walk command is used to check incoming requests in SNMPv3.
Scenario
Step 1: Set the following configuration in DUT0:
set interfaces ethernet eth0 address 10.0.0.1/24 set interfaces ethernet eth0 vrf A set system vrf A set service snmp user USER2TEST
Step 2: Set the following configuration in DUT1:
set interfaces ethernet eth0 address 10.0.0.2/24 set interfaces ethernet eth0 vrf B set system vrf B
Note
First, remote walk requests shouldn’t work because no information has been specifed in DUT1 about where to route the requests.
Step 3: Run command service snmp walk remote-agent 10.0.0.1 v3 USER2TEST oid ifTable at DUT1 and check if output does not match the following regular expressions:
::ifDescr\.1 = STRING: "?lo"?Show output
snmpbulkwalk: Unknown engine ID (Sub-id not found: (top) -> ifTable) (Network is unreachable)
Note
Remote walk requests also shouldn’t work because no information has been specified in DUT0 about where to route responses.
Step 4: Run command service snmp walk remote-agent 10.0.0.1 v3 USER2TEST vrf B oid ifTable at DUT1 and check if output does not match the following regular expressions:
::ifDescr\.1 = STRING: "?lo"?Show output
snmpbulkwalk: Timeout (Sub-id not found: (top) -> ifTable)
Note
After setting the VRF in DUT0, remote walk requests shouldn’t work until information on where to route the requests is specified in DUT1.
Step 5: Set the following configuration in DUT0:
set service snmp local-vrf A
Step 6: Run command service snmp walk remote-agent 10.0.0.1 v3 USER2TEST oid ifTable at DUT1 and check if output does not match the following regular expressions:
::ifDescr\.1 = STRING: "?lo"?Show output
snmpbulkwalk: Unknown engine ID (Sub-id not found: (top) -> ifTable) (Network is unreachable)
Step 7: Run command service snmp walk remote-agent 10.0.0.1 v3 USER2TEST vrf B oid ifTable at DUT1 and check if output matches the following regular expressions:
::ifDescr\.1 = STRING: "?lo"?Show output
IF-MIB::ifIndex.1 = INTEGER: 1 IF-MIB::ifIndex.2 = INTEGER: 2 IF-MIB::ifIndex.3 = INTEGER: 3 IF-MIB::ifIndex.29 = INTEGER: 29 IF-MIB::ifIndex.30 = INTEGER: 30 IF-MIB::ifIndex.31 = INTEGER: 31 IF-MIB::ifIndex.91 = INTEGER: 91 IF-MIB::ifDescr.1 = STRING: lo IF-MIB::ifDescr.2 = STRING: Red Hat, Inc Device 0001 IF-MIB::ifDescr.3 = STRING: Red Hat, Inc Device 0001 IF-MIB::ifDescr.29 = STRING: gre0 IF-MIB::ifDescr.30 = STRING: gretap0 IF-MIB::ifDescr.31 = STRING: erspan0 IF-MIB::ifDescr.91 = STRING: A IF-MIB::ifType.1 = INTEGER: softwareLoopback(24) IF-MIB::ifType.2 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.3 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.29 = INTEGER: tunnel(131) IF-MIB::ifType.30 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.31 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.91 = INTEGER: ethernetCsmacd(6) IF-MIB::ifMtu.1 = INTEGER: 65536 IF-MIB::ifMtu.2 = INTEGER: 1500 IF-MIB::ifMtu.3 = INTEGER: 1500 IF-MIB::ifMtu.29 = INTEGER: 1476 IF-MIB::ifMtu.30 = INTEGER: 1462 IF-MIB::ifMtu.31 = INTEGER: 1450 IF-MIB::ifMtu.91 = INTEGER: 65575 IF-MIB::ifSpeed.1 = Gauge32: 10000000 IF-MIB::ifSpeed.2 = Gauge32: 0 IF-MIB::ifSpeed.3 = Gauge32: 0 IF-MIB::ifSpeed.29 = Gauge32: 0 IF-MIB::ifSpeed.30 = Gauge32: 0 IF-MIB::ifSpeed.31 = Gauge32: 0 IF-MIB::ifSpeed.91 = Gauge32: 0 IF-MIB::ifPhysAddress.1 = STRING: IF-MIB::ifPhysAddress.2 = STRING: de:ad:be:ef:6c:10 IF-MIB::ifPhysAddress.3 = STRING: de:ad:be:ef:6c:11 IF-MIB::ifPhysAddress.29 = STRING: IF-MIB::ifPhysAddress.30 = STRING: IF-MIB::ifPhysAddress.31 = STRING: IF-MIB::ifPhysAddress.91 = STRING: e:75:9e:51:70:bb IF-MIB::ifAdminStatus.1 = INTEGER: up(1) IF-MIB::ifAdminStatus.2 = INTEGER: up(1) IF-MIB::ifAdminStatus.3 = INTEGER: down(2) IF-MIB::ifAdminStatus.29 = INTEGER: down(2) IF-MIB::ifAdminStatus.30 = INTEGER: down(2) IF-MIB::ifAdminStatus.31 = INTEGER: down(2) IF-MIB::ifAdminStatus.91 = INTEGER: up(1) IF-MIB::ifOperStatus.1 = INTEGER: up(1) IF-MIB::ifOperStatus.2 = INTEGER: up(1) IF-MIB::ifOperStatus.3 = INTEGER: down(2) IF-MIB::ifOperStatus.29 = INTEGER: down(2) IF-MIB::ifOperStatus.30 = INTEGER: down(2) IF-MIB::ifOperStatus.31 = INTEGER: down(2) IF-MIB::ifOperStatus.91 = INTEGER: up(1) IF-MIB::ifLastChange.1 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.2 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.3 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.29 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.30 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.31 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.91 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 221415 IF-MIB::ifInOctets.2 = Counter32: 894170152 IF-MIB::ifInOctets.3 = Counter32: 4072136728 IF-MIB::ifInOctets.29 = Counter32: 0 IF-MIB::ifInOctets.30 = Counter32: 0 IF-MIB::ifInOctets.31 = Counter32: 0 IF-MIB::ifInOctets.91 = Counter32: 720 IF-MIB::ifInUcastPkts.1 = Counter32: 0 IF-MIB::ifInUcastPkts.2 = Counter32: 0 IF-MIB::ifInUcastPkts.3 = Counter32: 0 IF-MIB::ifInUcastPkts.29 = Counter32: 0 IF-MIB::ifInUcastPkts.30 = Counter32: 0 IF-MIB::ifInUcastPkts.31 = Counter32: 0 IF-MIB::ifInUcastPkts.91 = Counter32: 0 IF-MIB::ifInNUcastPkts.1 = Counter32: 0 IF-MIB::ifInNUcastPkts.2 = Counter32: 0 IF-MIB::ifInNUcastPkts.3 = Counter32: 0 IF-MIB::ifInNUcastPkts.29 = Counter32: 0 IF-MIB::ifInNUcastPkts.30 = Counter32: 0 IF-MIB::ifInNUcastPkts.31 = Counter32: 0 IF-MIB::ifInNUcastPkts.91 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 0 IF-MIB::ifInDiscards.3 = Counter32: 14 IF-MIB::ifInDiscards.29 = Counter32: 0 IF-MIB::ifInDiscards.30 = Counter32: 0 IF-MIB::ifInDiscards.31 = Counter32: 0 IF-MIB::ifInDiscards.91 = Counter32: 0 IF-MIB::ifInErrors.1 = Counter32: 0 IF-MIB::ifInErrors.2 = Counter32: 0 IF-MIB::ifInErrors.3 = Counter32: 0 IF-MIB::ifInErrors.29 = Counter32: 0 IF-MIB::ifInErrors.30 = Counter32: 0 IF-MIB::ifInErrors.31 = Counter32: 0 IF-MIB::ifInErrors.91 = Counter32: 0 IF-MIB::ifInUnknownProtos.1 = Counter32: 0 IF-MIB::ifInUnknownProtos.2 = Counter32: 0 IF-MIB::ifInUnknownProtos.3 = Counter32: 0 IF-MIB::ifInUnknownProtos.29 = Counter32: 0 IF-MIB::ifInUnknownProtos.30 = Counter32: 0 IF-MIB::ifInUnknownProtos.31 = Counter32: 0 IF-MIB::ifInUnknownProtos.91 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 221415 IF-MIB::ifOutOctets.2 = Counter32: 783866 IF-MIB::ifOutOctets.3 = Counter32: 4072140318 IF-MIB::ifOutOctets.29 = Counter32: 0 IF-MIB::ifOutOctets.30 = Counter32: 0 IF-MIB::ifOutOctets.31 = Counter32: 0 IF-MIB::ifOutOctets.91 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 1623 IF-MIB::ifOutUcastPkts.2 = Counter32: 9187 IF-MIB::ifOutUcastPkts.3 = Counter32: 2832800 IF-MIB::ifOutUcastPkts.29 = Counter32: 0 IF-MIB::ifOutUcastPkts.30 = Counter32: 0 IF-MIB::ifOutUcastPkts.31 = Counter32: 0 IF-MIB::ifOutUcastPkts.91 = Counter32: 0 IF-MIB::ifOutNUcastPkts.1 = Counter32: 0 IF-MIB::ifOutNUcastPkts.2 = Counter32: 0 IF-MIB::ifOutNUcastPkts.3 = Counter32: 0 IF-MIB::ifOutNUcastPkts.29 = Counter32: 0 IF-MIB::ifOutNUcastPkts.30 = Counter32: 0 IF-MIB::ifOutNUcastPkts.31 = Counter32: 0 IF-MIB::ifOutNUcastPkts.91 = Counter32: 0 IF-MIB::ifOutDiscards.1 = Counter32: 0 IF-MIB::ifOutDiscards.2 = Counter32: 0 IF-MIB::ifOutDiscards.3 = Counter32: 0 IF-MIB::ifOutDiscards.29 = Counter32: 0 IF-MIB::ifOutDiscards.30 = Counter32: 0 IF-MIB::ifOutDiscards.31 = Counter32: 0 IF-MIB::ifOutDiscards.91 = Counter32: 0 IF-MIB::ifOutErrors.1 = Counter32: 0 IF-MIB::ifOutErrors.2 = Counter32: 0 IF-MIB::ifOutErrors.3 = Counter32: 0 IF-MIB::ifOutErrors.29 = Counter32: 0 IF-MIB::ifOutErrors.30 = Counter32: 0 IF-MIB::ifOutErrors.31 = Counter32: 0 IF-MIB::ifOutErrors.91 = Counter32: 0 IF-MIB::ifOutQLen.1 = Gauge32: 0 IF-MIB::ifOutQLen.2 = Gauge32: 0 IF-MIB::ifOutQLen.3 = Gauge32: 0 IF-MIB::ifOutQLen.29 = Gauge32: 0 IF-MIB::ifOutQLen.30 = Gauge32: 0 IF-MIB::ifOutQLen.31 = Gauge32: 0 IF-MIB::ifOutQLen.91 = Gauge32: 0 IF-MIB::ifSpecific.1 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.2 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.3 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.29 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.30 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.31 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.91 = OID: SNMPv2-SMI::zeroDotZero
Test SNMP Table With VRFs
Description
Using VRFs, a user is configured in DUT0 and the table command is used to check incoming requests in SNMPv3.
Scenario
Step 1: Set the following configuration in DUT0:
set interfaces ethernet eth0 address 10.0.0.1/24 set interfaces ethernet eth0 vrf A set system vrf A set service snmp user USER2TEST
Step 2: Set the following configuration in DUT1:
set interfaces ethernet eth0 address 10.0.0.2/24 set interfaces ethernet eth0 vrf B set system vrf B
Note
First, remote table requests shouldn’t work because no information has been specified in DUT1 about where to route the requests.
Step 3: Run command service snmp table remote-agent 10.0.0.1 v3 USER2TEST oid ifTable at DUT1 and check if output does not match the following regular expressions:
SNMP table:.*::ifTableShow output
snmptable: Unknown engine ID (Sub-id not found: (top) -> ifTable) (Network is unreachable)
Note
Remote table requests should also not work because no information has been specified in DUT0 about where to route responses.
Step 4: Run command service snmp table remote-agent 10.0.0.1 v3 USER2TEST vrf B oid ifTable at DUT1 and check if output does not match the following regular expressions:
SNMP table:.*::ifTableShow output
snmptable: Timeout (Sub-id not found: (top) -> ifTable)
Note
After setting the VRF in DUT0, remote table requests shouldn’t work until the information on where to route the requests is specified in DUT1.
Step 5: Set the following configuration in DUT0:
set service snmp local-vrf A
Step 6: Run command service snmp table remote-agent 10.0.0.1 v3 USER2TEST oid ifTable at DUT1 and check if output does not match the following regular expressions:
SNMP table:.*::ifTableShow output
snmptable: Unknown engine ID (Sub-id not found: (top) -> ifTable) (Network is unreachable)
Step 7: Run command service snmp table remote-agent 10.0.0.1 v3 USER2TEST vrf B oid ifTable at DUT1 and check if output matches the following regular expressions:
SNMP table:.*::ifTableShow output
SNMP table: IF-MIB::ifTable ifIndex ifDescr ifType ifMtu ifSpeed ifPhysAddress ifAdminStatus 1 lo softwareLoopback 65536 10000000 up 2 Red Hat, Inc Device 0001 ethernetCsmacd 1500 0 de:ad:be:ef:6c:10 up 3 Red Hat, Inc Device 0001 ethernetCsmacd 1500 0 de:ad:be:ef:6c:11 down 29 gre0 tunnel 1476 0 down 30 gretap0 ethernetCsmacd 1462 0 down 31 erspan0 ethernetCsmacd 1450 0 down 92 A ethernetCsmacd 65575 0 66:a7:d1:d4:9e:e8 up SNMP table IF-MIB::ifTable, part 2 ifOperStatus ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors up 0:0:00:00.00 221415 0 0 0 0 up 0:0:00:00.00 894173853 0 0 0 0 down 0:0:00:00.00 4072136728 0 0 14 0 down 0:0:00:00.00 0 0 0 0 0 down 0:0:00:00.00 0 0 0 0 0 down 0:0:00:00.00 0 0 0 0 0 up 0:0:00:00.00 720 0 0 0 0 SNMP table IF-MIB::ifTable, part 3 ifInUnknownProtos ifOutOctets ifOutUcastPkts ifOutNUcastPkts ifOutDiscards ifOutErrors ifOutQLen 0 221415 1623 0 0 0 0 0 790756 9218 0 0 0 0 0 4072140318 2832800 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SNMP table IF-MIB::ifTable, part 4 ifSpecific SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero