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.27 = INTEGER: 27 IF-MIB::ifIndex.28 = INTEGER: 28 IF-MIB::ifIndex.29 = INTEGER: 29 IF-MIB::ifIndex.188 = INTEGER: 188 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.27 = STRING: gre0 IF-MIB::ifDescr.28 = STRING: gretap0 IF-MIB::ifDescr.29 = STRING: erspan0 IF-MIB::ifDescr.188 = 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.27 = INTEGER: tunnel(131) IF-MIB::ifType.28 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.29 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.188 = 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.27 = INTEGER: 1476 IF-MIB::ifMtu.28 = INTEGER: 1462 IF-MIB::ifMtu.29 = INTEGER: 1450 IF-MIB::ifMtu.188 = 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.27 = Gauge32: 0 IF-MIB::ifSpeed.28 = Gauge32: 0 IF-MIB::ifSpeed.29 = Gauge32: 0 IF-MIB::ifSpeed.188 = 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.27 = STRING: IF-MIB::ifPhysAddress.28 = STRING: IF-MIB::ifPhysAddress.29 = STRING: IF-MIB::ifPhysAddress.188 = STRING: fe:94:82:b6:6a:ce 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.27 = INTEGER: down(2) IF-MIB::ifAdminStatus.28 = INTEGER: down(2) IF-MIB::ifAdminStatus.29 = INTEGER: down(2) IF-MIB::ifAdminStatus.188 = 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.27 = INTEGER: down(2) IF-MIB::ifOperStatus.28 = INTEGER: down(2) IF-MIB::ifOperStatus.29 = INTEGER: down(2) IF-MIB::ifOperStatus.188 = 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.27 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.28 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.29 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.188 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 148473 IF-MIB::ifInOctets.2 = Counter32: 744558050 IF-MIB::ifInOctets.3 = Counter32: 100450 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.27 = Counter32: 0 IF-MIB::ifInOctets.28 = Counter32: 0 IF-MIB::ifInOctets.29 = Counter32: 0 IF-MIB::ifInOctets.188 = 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.27 = Counter32: 0 IF-MIB::ifInUcastPkts.28 = Counter32: 0 IF-MIB::ifInUcastPkts.29 = Counter32: 0 IF-MIB::ifInUcastPkts.188 = 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.27 = Counter32: 0 IF-MIB::ifInNUcastPkts.28 = Counter32: 0 IF-MIB::ifInNUcastPkts.29 = Counter32: 0 IF-MIB::ifInNUcastPkts.188 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 19 IF-MIB::ifInDiscards.3 = Counter32: 0 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.27 = Counter32: 0 IF-MIB::ifInDiscards.28 = Counter32: 0 IF-MIB::ifInDiscards.29 = Counter32: 0 IF-MIB::ifInDiscards.188 = 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.27 = Counter32: 0 IF-MIB::ifInErrors.28 = Counter32: 0 IF-MIB::ifInErrors.29 = Counter32: 0 IF-MIB::ifInErrors.188 = 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.27 = Counter32: 0 IF-MIB::ifInUnknownProtos.28 = Counter32: 0 IF-MIB::ifInUnknownProtos.29 = Counter32: 0 IF-MIB::ifInUnknownProtos.188 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 148473 IF-MIB::ifOutOctets.2 = Counter32: 1729245 IF-MIB::ifOutOctets.3 = Counter32: 112597 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.27 = Counter32: 0 IF-MIB::ifOutOctets.28 = Counter32: 0 IF-MIB::ifOutOctets.29 = Counter32: 0 IF-MIB::ifOutOctets.188 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 1384 IF-MIB::ifOutUcastPkts.2 = Counter32: 20648 IF-MIB::ifOutUcastPkts.3 = Counter32: 977 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.27 = Counter32: 0 IF-MIB::ifOutUcastPkts.28 = Counter32: 0 IF-MIB::ifOutUcastPkts.29 = Counter32: 0 IF-MIB::ifOutUcastPkts.188 = 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.27 = Counter32: 0 IF-MIB::ifOutNUcastPkts.28 = Counter32: 0 IF-MIB::ifOutNUcastPkts.29 = Counter32: 0 IF-MIB::ifOutNUcastPkts.188 = 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.27 = Counter32: 0 IF-MIB::ifOutDiscards.28 = Counter32: 0 IF-MIB::ifOutDiscards.29 = Counter32: 0 IF-MIB::ifOutDiscards.188 = 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.27 = Counter32: 0 IF-MIB::ifOutErrors.28 = Counter32: 0 IF-MIB::ifOutErrors.29 = Counter32: 0 IF-MIB::ifOutErrors.188 = 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.27 = Gauge32: 0 IF-MIB::ifOutQLen.28 = Gauge32: 0 IF-MIB::ifOutQLen.29 = Gauge32: 0 IF-MIB::ifOutQLen.188 = 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.27 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.28 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.29 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.188 = 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 27 gre0 tunnel 1476 0 down down 28 gretap0 ethernetCsmacd 1462 0 down down 29 erspan0 ethernetCsmacd 1450 0 down down 189 A ethernetCsmacd 65575 0 86:8b:e2:3c:35:cb up up SNMP table IF-MIB::ifTable, part 2 ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors ifInUnknownProtos 0:0:00:00.00 148777 0 0 0 0 0 0:0:00:00.00 744562085 0 0 19 0 0 0:0:00:00.00 100450 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 148777 1388 0 0 0 0 1736768 20681 0 0 0 0 112597 977 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