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.5 = INTEGER: 5 IF-MIB::ifIndex.24 = INTEGER: 24 IF-MIB::ifIndex.25 = INTEGER: 25 IF-MIB::ifIndex.26 = INTEGER: 26 IF-MIB::ifIndex.428 = INTEGER: 428 IF-MIB::ifDescr.1 = STRING: lo IF-MIB::ifDescr.2 = STRING: eth0 IF-MIB::ifDescr.3 = STRING: eth1 IF-MIB::ifDescr.5 = STRING: ip_vti0 IF-MIB::ifDescr.24 = STRING: gre0 IF-MIB::ifDescr.25 = STRING: gretap0 IF-MIB::ifDescr.26 = STRING: erspan0 IF-MIB::ifDescr.428 = 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.5 = INTEGER: tunnel(131) IF-MIB::ifType.24 = INTEGER: tunnel(131) IF-MIB::ifType.25 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.26 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.428 = INTEGER: ethernetCsmacd(6) IF-MIB::ifMtu.1 = INTEGER: 65536 IF-MIB::ifMtu.2 = INTEGER: 1500 IF-MIB::ifMtu.3 = INTEGER: 1500 IF-MIB::ifMtu.5 = INTEGER: 1480 IF-MIB::ifMtu.24 = INTEGER: 1476 IF-MIB::ifMtu.25 = INTEGER: 1462 IF-MIB::ifMtu.26 = INTEGER: 1450 IF-MIB::ifMtu.428 = INTEGER: 65575 IF-MIB::ifSpeed.1 = Gauge32: 10000000 IF-MIB::ifSpeed.2 = Gauge32: 0 IF-MIB::ifSpeed.3 = Gauge32: 0 IF-MIB::ifSpeed.5 = Gauge32: 0 IF-MIB::ifSpeed.24 = Gauge32: 0 IF-MIB::ifSpeed.25 = Gauge32: 0 IF-MIB::ifSpeed.26 = Gauge32: 0 IF-MIB::ifSpeed.428 = 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.5 = STRING: IF-MIB::ifPhysAddress.24 = STRING: IF-MIB::ifPhysAddress.25 = STRING: IF-MIB::ifPhysAddress.26 = STRING: IF-MIB::ifPhysAddress.428 = STRING: 1e:d6:2:b:d9:d6 IF-MIB::ifAdminStatus.1 = INTEGER: up(1) IF-MIB::ifAdminStatus.2 = INTEGER: up(1) IF-MIB::ifAdminStatus.3 = INTEGER: down(2) IF-MIB::ifAdminStatus.5 = INTEGER: down(2) IF-MIB::ifAdminStatus.24 = INTEGER: down(2) IF-MIB::ifAdminStatus.25 = INTEGER: down(2) IF-MIB::ifAdminStatus.26 = INTEGER: down(2) IF-MIB::ifAdminStatus.428 = 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.5 = INTEGER: down(2) IF-MIB::ifOperStatus.24 = INTEGER: down(2) IF-MIB::ifOperStatus.25 = INTEGER: down(2) IF-MIB::ifOperStatus.26 = INTEGER: down(2) IF-MIB::ifOperStatus.428 = 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.5 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.24 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.25 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.26 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.428 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 245215 IF-MIB::ifInOctets.2 = Counter32: 5407817 IF-MIB::ifInOctets.3 = Counter32: 716989510 IF-MIB::ifInOctets.5 = Counter32: 0 IF-MIB::ifInOctets.24 = Counter32: 0 IF-MIB::ifInOctets.25 = Counter32: 0 IF-MIB::ifInOctets.26 = Counter32: 0 IF-MIB::ifInOctets.428 = Counter32: 720 IF-MIB::ifInUcastPkts.1 = Counter32: 0 IF-MIB::ifInUcastPkts.2 = Counter32: 0 IF-MIB::ifInUcastPkts.3 = Counter32: 0 IF-MIB::ifInUcastPkts.5 = Counter32: 0 IF-MIB::ifInUcastPkts.24 = Counter32: 0 IF-MIB::ifInUcastPkts.25 = Counter32: 0 IF-MIB::ifInUcastPkts.26 = Counter32: 0 IF-MIB::ifInUcastPkts.428 = Counter32: 0 IF-MIB::ifInNUcastPkts.1 = Counter32: 0 IF-MIB::ifInNUcastPkts.2 = Counter32: 0 IF-MIB::ifInNUcastPkts.3 = Counter32: 0 IF-MIB::ifInNUcastPkts.5 = Counter32: 0 IF-MIB::ifInNUcastPkts.24 = Counter32: 0 IF-MIB::ifInNUcastPkts.25 = Counter32: 0 IF-MIB::ifInNUcastPkts.26 = Counter32: 0 IF-MIB::ifInNUcastPkts.428 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 0 IF-MIB::ifInDiscards.3 = Counter32: 16 IF-MIB::ifInDiscards.5 = Counter32: 0 IF-MIB::ifInDiscards.24 = Counter32: 0 IF-MIB::ifInDiscards.25 = Counter32: 0 IF-MIB::ifInDiscards.26 = Counter32: 0 IF-MIB::ifInDiscards.428 = Counter32: 0 IF-MIB::ifInErrors.1 = Counter32: 0 IF-MIB::ifInErrors.2 = Counter32: 0 IF-MIB::ifInErrors.3 = Counter32: 0 IF-MIB::ifInErrors.5 = Counter32: 0 IF-MIB::ifInErrors.24 = Counter32: 0 IF-MIB::ifInErrors.25 = Counter32: 0 IF-MIB::ifInErrors.26 = Counter32: 0 IF-MIB::ifInErrors.428 = Counter32: 0 IF-MIB::ifInUnknownProtos.1 = Counter32: 0 IF-MIB::ifInUnknownProtos.2 = Counter32: 0 IF-MIB::ifInUnknownProtos.3 = Counter32: 0 IF-MIB::ifInUnknownProtos.5 = Counter32: 0 IF-MIB::ifInUnknownProtos.24 = Counter32: 0 IF-MIB::ifInUnknownProtos.25 = Counter32: 0 IF-MIB::ifInUnknownProtos.26 = Counter32: 0 IF-MIB::ifInUnknownProtos.428 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 245215 IF-MIB::ifOutOctets.2 = Counter32: 1048520 IF-MIB::ifOutOctets.3 = Counter32: 717052082 IF-MIB::ifOutOctets.5 = Counter32: 0 IF-MIB::ifOutOctets.24 = Counter32: 0 IF-MIB::ifOutOctets.25 = Counter32: 0 IF-MIB::ifOutOctets.26 = Counter32: 0 IF-MIB::ifOutOctets.428 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 2243 IF-MIB::ifOutUcastPkts.2 = Counter32: 8326 IF-MIB::ifOutUcastPkts.3 = Counter32: 10023974 IF-MIB::ifOutUcastPkts.5 = Counter32: 0 IF-MIB::ifOutUcastPkts.24 = Counter32: 0 IF-MIB::ifOutUcastPkts.25 = Counter32: 0 IF-MIB::ifOutUcastPkts.26 = Counter32: 0 IF-MIB::ifOutUcastPkts.428 = Counter32: 0 IF-MIB::ifOutNUcastPkts.1 = Counter32: 0 IF-MIB::ifOutNUcastPkts.2 = Counter32: 0 IF-MIB::ifOutNUcastPkts.3 = Counter32: 0 IF-MIB::ifOutNUcastPkts.5 = Counter32: 0 IF-MIB::ifOutNUcastPkts.24 = Counter32: 0 IF-MIB::ifOutNUcastPkts.25 = Counter32: 0 IF-MIB::ifOutNUcastPkts.26 = Counter32: 0 IF-MIB::ifOutNUcastPkts.428 = Counter32: 0 IF-MIB::ifOutDiscards.1 = Counter32: 0 IF-MIB::ifOutDiscards.2 = Counter32: 0 IF-MIB::ifOutDiscards.3 = Counter32: 0 IF-MIB::ifOutDiscards.5 = Counter32: 0 IF-MIB::ifOutDiscards.24 = Counter32: 0 IF-MIB::ifOutDiscards.25 = Counter32: 0 IF-MIB::ifOutDiscards.26 = Counter32: 0 IF-MIB::ifOutDiscards.428 = Counter32: 0 IF-MIB::ifOutErrors.1 = Counter32: 0 IF-MIB::ifOutErrors.2 = Counter32: 0 IF-MIB::ifOutErrors.3 = Counter32: 0 IF-MIB::ifOutErrors.5 = Counter32: 0 IF-MIB::ifOutErrors.24 = Counter32: 0 IF-MIB::ifOutErrors.25 = Counter32: 0 IF-MIB::ifOutErrors.26 = Counter32: 0 IF-MIB::ifOutErrors.428 = Counter32: 0 IF-MIB::ifOutQLen.1 = Gauge32: 0 IF-MIB::ifOutQLen.2 = Gauge32: 0 IF-MIB::ifOutQLen.3 = Gauge32: 0 IF-MIB::ifOutQLen.5 = Gauge32: 0 IF-MIB::ifOutQLen.24 = Gauge32: 0 IF-MIB::ifOutQLen.25 = Gauge32: 0 IF-MIB::ifOutQLen.26 = Gauge32: 0 IF-MIB::ifOutQLen.428 = 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.5 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.24 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.25 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.26 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.428 = 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 5 ip_vti0 tunnel 1480 0 down down 24 gre0 tunnel 1476 0 down down 25 gretap0 ethernetCsmacd 1462 0 down down 26 erspan0 ethernetCsmacd 1450 0 down down 429 A ethernetCsmacd 65575 0 8e:b:6b:1a:27:c0 up up SNMP table IF-MIB::ifTable, part 2 ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors ifInUnknownProtos 0:0:00:00.00 245491 0 0 0 0 0 0:0:00:00.00 5411852 0 0 0 0 0 0:0:00:00.00 716989510 0 0 16 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 245491 2247 0 0 0 0 1056048 8359 0 0 0 0 717052082 10023974 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