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 service snmp user USER2TEST set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set system vrf A
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 login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' 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: Modify the following configuration lines 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.4 = INTEGER: 4 IF-MIB::ifIndex.35 = INTEGER: 35 IF-MIB::ifIndex.36 = INTEGER: 36 IF-MIB::ifIndex.37 = INTEGER: 37 IF-MIB::ifIndex.377 = INTEGER: 377 IF-MIB::ifIndex.379 = INTEGER: 379 IF-MIB::ifIndex.381 = INTEGER: 381 IF-MIB::ifIndex.547 = INTEGER: 547 IF-MIB::ifDescr.1 = STRING: lo IF-MIB::ifDescr.2 = STRING: eth0 IF-MIB::ifDescr.3 = STRING: eth1 IF-MIB::ifDescr.4 = STRING: ip_vti0 IF-MIB::ifDescr.35 = STRING: gre0 IF-MIB::ifDescr.36 = STRING: gretap0 IF-MIB::ifDescr.37 = STRING: erspan0 IF-MIB::ifDescr.377 = STRING: sit0 IF-MIB::ifDescr.379 = STRING: tunl0 IF-MIB::ifDescr.381 = STRING: ip6tnl0 IF-MIB::ifDescr.547 = 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.4 = INTEGER: tunnel(131) IF-MIB::ifType.35 = INTEGER: tunnel(131) IF-MIB::ifType.36 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.37 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.377 = INTEGER: tunnel(131) IF-MIB::ifType.379 = INTEGER: tunnel(131) IF-MIB::ifType.381 = INTEGER: tunnel(131) IF-MIB::ifType.547 = INTEGER: ethernetCsmacd(6) IF-MIB::ifMtu.1 = INTEGER: 65536 IF-MIB::ifMtu.2 = INTEGER: 1500 IF-MIB::ifMtu.3 = INTEGER: 1500 IF-MIB::ifMtu.4 = INTEGER: 1480 IF-MIB::ifMtu.35 = INTEGER: 1476 IF-MIB::ifMtu.36 = INTEGER: 1462 IF-MIB::ifMtu.37 = INTEGER: 1450 IF-MIB::ifMtu.377 = INTEGER: 1480 IF-MIB::ifMtu.379 = INTEGER: 1480 IF-MIB::ifMtu.381 = INTEGER: 1452 IF-MIB::ifMtu.547 = INTEGER: 65575 IF-MIB::ifSpeed.1 = Gauge32: 10000000 IF-MIB::ifSpeed.2 = Gauge32: 0 IF-MIB::ifSpeed.3 = Gauge32: 0 IF-MIB::ifSpeed.4 = Gauge32: 0 IF-MIB::ifSpeed.35 = Gauge32: 0 IF-MIB::ifSpeed.36 = Gauge32: 0 IF-MIB::ifSpeed.37 = Gauge32: 0 IF-MIB::ifSpeed.377 = Gauge32: 0 IF-MIB::ifSpeed.379 = Gauge32: 0 IF-MIB::ifSpeed.381 = Gauge32: 0 IF-MIB::ifSpeed.547 = Gauge32: 0 IF-MIB::ifPhysAddress.1 = STRING: IF-MIB::ifPhysAddress.2 = STRING: de:ad:be:ef:6c:0 IF-MIB::ifPhysAddress.3 = STRING: de:ad:be:ef:6c:1 IF-MIB::ifPhysAddress.4 = STRING: IF-MIB::ifPhysAddress.35 = STRING: IF-MIB::ifPhysAddress.36 = STRING: IF-MIB::ifPhysAddress.37 = STRING: IF-MIB::ifPhysAddress.377 = STRING: IF-MIB::ifPhysAddress.379 = STRING: IF-MIB::ifPhysAddress.381 = STRING: IF-MIB::ifPhysAddress.547 = STRING: 56:76:1b:37:a0:ae IF-MIB::ifAdminStatus.1 = INTEGER: up(1) IF-MIB::ifAdminStatus.2 = INTEGER: up(1) IF-MIB::ifAdminStatus.3 = INTEGER: down(2) IF-MIB::ifAdminStatus.4 = INTEGER: down(2) IF-MIB::ifAdminStatus.35 = INTEGER: down(2) IF-MIB::ifAdminStatus.36 = INTEGER: down(2) IF-MIB::ifAdminStatus.37 = INTEGER: down(2) IF-MIB::ifAdminStatus.377 = INTEGER: down(2) IF-MIB::ifAdminStatus.379 = INTEGER: down(2) IF-MIB::ifAdminStatus.381 = INTEGER: down(2) IF-MIB::ifAdminStatus.547 = 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.4 = INTEGER: down(2) IF-MIB::ifOperStatus.35 = INTEGER: down(2) IF-MIB::ifOperStatus.36 = INTEGER: down(2) IF-MIB::ifOperStatus.37 = INTEGER: down(2) IF-MIB::ifOperStatus.377 = INTEGER: down(2) IF-MIB::ifOperStatus.379 = INTEGER: down(2) IF-MIB::ifOperStatus.381 = INTEGER: down(2) IF-MIB::ifOperStatus.547 = 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.4 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.35 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.36 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.37 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.377 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.379 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.381 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.547 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 1269526 IF-MIB::ifInOctets.2 = Counter32: 793771970 IF-MIB::ifInOctets.3 = Counter32: 3967561855 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.35 = Counter32: 0 IF-MIB::ifInOctets.36 = Counter32: 0 IF-MIB::ifInOctets.37 = Counter32: 0 IF-MIB::ifInOctets.377 = Counter32: 0 IF-MIB::ifInOctets.379 = Counter32: 0 IF-MIB::ifInOctets.381 = Counter32: 0 IF-MIB::ifInOctets.547 = Counter32: 720 IF-MIB::ifInUcastPkts.1 = Counter32: 0 IF-MIB::ifInUcastPkts.2 = Counter32: 0 IF-MIB::ifInUcastPkts.3 = Counter32: 0 IF-MIB::ifInUcastPkts.4 = Counter32: 0 IF-MIB::ifInUcastPkts.35 = Counter32: 0 IF-MIB::ifInUcastPkts.36 = Counter32: 0 IF-MIB::ifInUcastPkts.37 = Counter32: 0 IF-MIB::ifInUcastPkts.377 = Counter32: 0 IF-MIB::ifInUcastPkts.379 = Counter32: 0 IF-MIB::ifInUcastPkts.381 = Counter32: 0 IF-MIB::ifInUcastPkts.547 = Counter32: 0 IF-MIB::ifInNUcastPkts.1 = Counter32: 0 IF-MIB::ifInNUcastPkts.2 = Counter32: 0 IF-MIB::ifInNUcastPkts.3 = Counter32: 0 IF-MIB::ifInNUcastPkts.4 = Counter32: 0 IF-MIB::ifInNUcastPkts.35 = Counter32: 0 IF-MIB::ifInNUcastPkts.36 = Counter32: 0 IF-MIB::ifInNUcastPkts.37 = Counter32: 0 IF-MIB::ifInNUcastPkts.377 = Counter32: 0 IF-MIB::ifInNUcastPkts.379 = Counter32: 0 IF-MIB::ifInNUcastPkts.381 = Counter32: 0 IF-MIB::ifInNUcastPkts.547 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 191 IF-MIB::ifInDiscards.3 = Counter32: 14 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.35 = Counter32: 0 IF-MIB::ifInDiscards.36 = Counter32: 0 IF-MIB::ifInDiscards.37 = Counter32: 0 IF-MIB::ifInDiscards.377 = Counter32: 0 IF-MIB::ifInDiscards.379 = Counter32: 0 IF-MIB::ifInDiscards.381 = Counter32: 0 IF-MIB::ifInDiscards.547 = Counter32: 0 IF-MIB::ifInErrors.1 = Counter32: 0 IF-MIB::ifInErrors.2 = Counter32: 0 IF-MIB::ifInErrors.3 = Counter32: 0 IF-MIB::ifInErrors.4 = Counter32: 0 IF-MIB::ifInErrors.35 = Counter32: 0 IF-MIB::ifInErrors.36 = Counter32: 0 IF-MIB::ifInErrors.37 = Counter32: 0 IF-MIB::ifInErrors.377 = Counter32: 0 IF-MIB::ifInErrors.379 = Counter32: 0 IF-MIB::ifInErrors.381 = Counter32: 0 IF-MIB::ifInErrors.547 = Counter32: 0 IF-MIB::ifInUnknownProtos.1 = Counter32: 0 IF-MIB::ifInUnknownProtos.2 = Counter32: 0 IF-MIB::ifInUnknownProtos.3 = Counter32: 0 IF-MIB::ifInUnknownProtos.4 = Counter32: 0 IF-MIB::ifInUnknownProtos.35 = Counter32: 0 IF-MIB::ifInUnknownProtos.36 = Counter32: 0 IF-MIB::ifInUnknownProtos.37 = Counter32: 0 IF-MIB::ifInUnknownProtos.377 = Counter32: 0 IF-MIB::ifInUnknownProtos.379 = Counter32: 0 IF-MIB::ifInUnknownProtos.381 = Counter32: 0 IF-MIB::ifInUnknownProtos.547 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 1269526 IF-MIB::ifOutOctets.2 = Counter32: 1500603839 IF-MIB::ifOutOctets.3 = Counter32: 1420059025 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.35 = Counter32: 0 IF-MIB::ifOutOctets.36 = Counter32: 0 IF-MIB::ifOutOctets.37 = Counter32: 0 IF-MIB::ifOutOctets.377 = Counter32: 0 IF-MIB::ifOutOctets.379 = Counter32: 0 IF-MIB::ifOutOctets.381 = Counter32: 0 IF-MIB::ifOutOctets.547 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 9634 IF-MIB::ifOutUcastPkts.2 = Counter32: 1375589 IF-MIB::ifOutUcastPkts.3 = Counter32: 4330224 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.35 = Counter32: 0 IF-MIB::ifOutUcastPkts.36 = Counter32: 0 IF-MIB::ifOutUcastPkts.37 = Counter32: 0 IF-MIB::ifOutUcastPkts.377 = Counter32: 0 IF-MIB::ifOutUcastPkts.379 = Counter32: 0 IF-MIB::ifOutUcastPkts.381 = Counter32: 0 IF-MIB::ifOutUcastPkts.547 = Counter32: 0 IF-MIB::ifOutNUcastPkts.1 = Counter32: 0 IF-MIB::ifOutNUcastPkts.2 = Counter32: 0 IF-MIB::ifOutNUcastPkts.3 = Counter32: 0 IF-MIB::ifOutNUcastPkts.4 = Counter32: 0 IF-MIB::ifOutNUcastPkts.35 = Counter32: 0 IF-MIB::ifOutNUcastPkts.36 = Counter32: 0 IF-MIB::ifOutNUcastPkts.37 = Counter32: 0 IF-MIB::ifOutNUcastPkts.377 = Counter32: 0 IF-MIB::ifOutNUcastPkts.379 = Counter32: 0 IF-MIB::ifOutNUcastPkts.381 = Counter32: 0 IF-MIB::ifOutNUcastPkts.547 = Counter32: 0 IF-MIB::ifOutDiscards.1 = Counter32: 0 IF-MIB::ifOutDiscards.2 = Counter32: 0 IF-MIB::ifOutDiscards.3 = Counter32: 0 IF-MIB::ifOutDiscards.4 = Counter32: 0 IF-MIB::ifOutDiscards.35 = Counter32: 0 IF-MIB::ifOutDiscards.36 = Counter32: 0 IF-MIB::ifOutDiscards.37 = Counter32: 0 IF-MIB::ifOutDiscards.377 = Counter32: 0 IF-MIB::ifOutDiscards.379 = Counter32: 0 IF-MIB::ifOutDiscards.381 = Counter32: 0 IF-MIB::ifOutDiscards.547 = Counter32: 0 IF-MIB::ifOutErrors.1 = Counter32: 0 IF-MIB::ifOutErrors.2 = Counter32: 0 IF-MIB::ifOutErrors.3 = Counter32: 0 IF-MIB::ifOutErrors.4 = Counter32: 0 IF-MIB::ifOutErrors.35 = Counter32: 0 IF-MIB::ifOutErrors.36 = Counter32: 0 IF-MIB::ifOutErrors.37 = Counter32: 0 IF-MIB::ifOutErrors.377 = Counter32: 0 IF-MIB::ifOutErrors.379 = Counter32: 0 IF-MIB::ifOutErrors.381 = Counter32: 0 IF-MIB::ifOutErrors.547 = Counter32: 0 IF-MIB::ifOutQLen.1 = Gauge32: 0 IF-MIB::ifOutQLen.2 = Gauge32: 0 IF-MIB::ifOutQLen.3 = Gauge32: 0 IF-MIB::ifOutQLen.4 = Gauge32: 0 IF-MIB::ifOutQLen.35 = Gauge32: 0 IF-MIB::ifOutQLen.36 = Gauge32: 0 IF-MIB::ifOutQLen.37 = Gauge32: 0 IF-MIB::ifOutQLen.377 = Gauge32: 0 IF-MIB::ifOutQLen.379 = Gauge32: 0 IF-MIB::ifOutQLen.381 = Gauge32: 0 IF-MIB::ifOutQLen.547 = 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.4 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.35 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.36 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.37 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.377 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.379 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.381 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.547 = 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 service snmp user USER2TEST set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set system vrf A
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 login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' 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: Modify the following configuration lines 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 ifOperStatus 1 lo softwareLoopback 65536 10000000 up up 2 eth0 ethernetCsmacd 1500 0 de:ad:be:ef:6c:0 up up 3 eth1 ethernetCsmacd 1500 0 de:ad:be:ef:6c:1 down down 4 ip_vti0 tunnel 1480 0 down down 35 gre0 tunnel 1476 0 down down 36 gretap0 ethernetCsmacd 1462 0 down down 37 erspan0 ethernetCsmacd 1450 0 down down 377 sit0 tunnel 1480 0 down down 379 tunl0 tunnel 1480 0 down down 381 ip6tnl0 tunnel 1452 0 down down 548 A ethernetCsmacd 65575 0 4e:d5:b7:42:dd:bc up up SNMP table IF-MIB::ifTable, part 2 ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors ifInUnknownProtos 0:0:00:00.00 1270770 0 0 0 0 0 0:0:00:00.00 793777166 0 0 191 0 0 0:0:00:00.00 3967561855 0 0 14 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 0 0 0 0 0 0 0:0:00:00.00 720 0 0 0 0 0 SNMP table IF-MIB::ifTable, part 3 ifOutOctets ifOutUcastPkts ifOutNUcastPkts ifOutDiscards ifOutErrors ifOutQLen 1270770 9636 0 0 0 0 1500613803 1375630 0 0 0 0 1420059025 4330224 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 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 SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero SNMPv2-SMI::zeroDotZero