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.25 = INTEGER: 25 IF-MIB::ifIndex.26 = INTEGER: 26 IF-MIB::ifIndex.27 = INTEGER: 27 IF-MIB::ifIndex.238 = INTEGER: 238 IF-MIB::ifIndex.240 = INTEGER: 240 IF-MIB::ifIndex.242 = INTEGER: 242 IF-MIB::ifIndex.542 = INTEGER: 542 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.25 = STRING: gre0 IF-MIB::ifDescr.26 = STRING: gretap0 IF-MIB::ifDescr.27 = STRING: erspan0 IF-MIB::ifDescr.238 = STRING: tunl0 IF-MIB::ifDescr.240 = STRING: ip6tnl0 IF-MIB::ifDescr.242 = STRING: sit0 IF-MIB::ifDescr.542 = 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.25 = INTEGER: tunnel(131) IF-MIB::ifType.26 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.27 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.238 = INTEGER: tunnel(131) IF-MIB::ifType.240 = INTEGER: tunnel(131) IF-MIB::ifType.242 = INTEGER: tunnel(131) IF-MIB::ifType.542 = 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.25 = INTEGER: 1476 IF-MIB::ifMtu.26 = INTEGER: 1462 IF-MIB::ifMtu.27 = INTEGER: 1450 IF-MIB::ifMtu.238 = INTEGER: 1480 IF-MIB::ifMtu.240 = INTEGER: 1452 IF-MIB::ifMtu.242 = INTEGER: 1480 IF-MIB::ifMtu.542 = 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.25 = Gauge32: 0 IF-MIB::ifSpeed.26 = Gauge32: 0 IF-MIB::ifSpeed.27 = Gauge32: 0 IF-MIB::ifSpeed.238 = Gauge32: 0 IF-MIB::ifSpeed.240 = Gauge32: 0 IF-MIB::ifSpeed.242 = Gauge32: 0 IF-MIB::ifSpeed.542 = 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.4 = STRING: IF-MIB::ifPhysAddress.25 = STRING: IF-MIB::ifPhysAddress.26 = STRING: IF-MIB::ifPhysAddress.27 = STRING: IF-MIB::ifPhysAddress.238 = STRING: IF-MIB::ifPhysAddress.240 = STRING: IF-MIB::ifPhysAddress.242 = STRING: IF-MIB::ifPhysAddress.542 = STRING: c6:c9:f0:6a:e8:6e 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.25 = INTEGER: down(2) IF-MIB::ifAdminStatus.26 = INTEGER: down(2) IF-MIB::ifAdminStatus.27 = INTEGER: down(2) IF-MIB::ifAdminStatus.238 = INTEGER: down(2) IF-MIB::ifAdminStatus.240 = INTEGER: down(2) IF-MIB::ifAdminStatus.242 = INTEGER: down(2) IF-MIB::ifAdminStatus.542 = 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.25 = INTEGER: down(2) IF-MIB::ifOperStatus.26 = INTEGER: down(2) IF-MIB::ifOperStatus.27 = INTEGER: down(2) IF-MIB::ifOperStatus.238 = INTEGER: down(2) IF-MIB::ifOperStatus.240 = INTEGER: down(2) IF-MIB::ifOperStatus.242 = INTEGER: down(2) IF-MIB::ifOperStatus.542 = 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.25 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.26 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.27 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.238 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.240 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.242 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.542 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 1169631 IF-MIB::ifInOctets.2 = Counter32: 834955669 IF-MIB::ifInOctets.3 = Counter32: 1819489747 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.25 = Counter32: 0 IF-MIB::ifInOctets.26 = Counter32: 0 IF-MIB::ifInOctets.27 = Counter32: 0 IF-MIB::ifInOctets.238 = Counter32: 0 IF-MIB::ifInOctets.240 = Counter32: 0 IF-MIB::ifInOctets.242 = Counter32: 0 IF-MIB::ifInOctets.542 = 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.25 = Counter32: 0 IF-MIB::ifInUcastPkts.26 = Counter32: 0 IF-MIB::ifInUcastPkts.27 = Counter32: 0 IF-MIB::ifInUcastPkts.238 = Counter32: 0 IF-MIB::ifInUcastPkts.240 = Counter32: 0 IF-MIB::ifInUcastPkts.242 = Counter32: 0 IF-MIB::ifInUcastPkts.542 = 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.25 = Counter32: 0 IF-MIB::ifInNUcastPkts.26 = Counter32: 0 IF-MIB::ifInNUcastPkts.27 = Counter32: 0 IF-MIB::ifInNUcastPkts.238 = Counter32: 0 IF-MIB::ifInNUcastPkts.240 = Counter32: 0 IF-MIB::ifInNUcastPkts.242 = Counter32: 0 IF-MIB::ifInNUcastPkts.542 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 166 IF-MIB::ifInDiscards.3 = Counter32: 13 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.25 = Counter32: 0 IF-MIB::ifInDiscards.26 = Counter32: 0 IF-MIB::ifInDiscards.27 = Counter32: 0 IF-MIB::ifInDiscards.238 = Counter32: 0 IF-MIB::ifInDiscards.240 = Counter32: 0 IF-MIB::ifInDiscards.242 = Counter32: 0 IF-MIB::ifInDiscards.542 = 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.25 = Counter32: 0 IF-MIB::ifInErrors.26 = Counter32: 0 IF-MIB::ifInErrors.27 = Counter32: 0 IF-MIB::ifInErrors.238 = Counter32: 0 IF-MIB::ifInErrors.240 = Counter32: 0 IF-MIB::ifInErrors.242 = Counter32: 0 IF-MIB::ifInErrors.542 = 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.25 = Counter32: 0 IF-MIB::ifInUnknownProtos.26 = Counter32: 0 IF-MIB::ifInUnknownProtos.27 = Counter32: 0 IF-MIB::ifInUnknownProtos.238 = Counter32: 0 IF-MIB::ifInUnknownProtos.240 = Counter32: 0 IF-MIB::ifInUnknownProtos.242 = Counter32: 0 IF-MIB::ifInUnknownProtos.542 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 1169631 IF-MIB::ifOutOctets.2 = Counter32: 3063922898 IF-MIB::ifOutOctets.3 = Counter32: 1758372385 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.25 = Counter32: 0 IF-MIB::ifOutOctets.26 = Counter32: 0 IF-MIB::ifOutOctets.27 = Counter32: 0 IF-MIB::ifOutOctets.238 = Counter32: 0 IF-MIB::ifOutOctets.240 = Counter32: 0 IF-MIB::ifOutOctets.242 = Counter32: 0 IF-MIB::ifOutOctets.542 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 9016 IF-MIB::ifOutUcastPkts.2 = Counter32: 5558443 IF-MIB::ifOutUcastPkts.3 = Counter32: 10865909 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.25 = Counter32: 0 IF-MIB::ifOutUcastPkts.26 = Counter32: 0 IF-MIB::ifOutUcastPkts.27 = Counter32: 0 IF-MIB::ifOutUcastPkts.238 = Counter32: 0 IF-MIB::ifOutUcastPkts.240 = Counter32: 0 IF-MIB::ifOutUcastPkts.242 = Counter32: 0 IF-MIB::ifOutUcastPkts.542 = 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.25 = Counter32: 0 IF-MIB::ifOutNUcastPkts.26 = Counter32: 0 IF-MIB::ifOutNUcastPkts.27 = Counter32: 0 IF-MIB::ifOutNUcastPkts.238 = Counter32: 0 IF-MIB::ifOutNUcastPkts.240 = Counter32: 0 IF-MIB::ifOutNUcastPkts.242 = Counter32: 0 IF-MIB::ifOutNUcastPkts.542 = 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.25 = Counter32: 0 IF-MIB::ifOutDiscards.26 = Counter32: 0 IF-MIB::ifOutDiscards.27 = Counter32: 0 IF-MIB::ifOutDiscards.238 = Counter32: 0 IF-MIB::ifOutDiscards.240 = Counter32: 0 IF-MIB::ifOutDiscards.242 = Counter32: 0 IF-MIB::ifOutDiscards.542 = 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.25 = Counter32: 0 IF-MIB::ifOutErrors.26 = Counter32: 0 IF-MIB::ifOutErrors.27 = Counter32: 0 IF-MIB::ifOutErrors.238 = Counter32: 0 IF-MIB::ifOutErrors.240 = Counter32: 0 IF-MIB::ifOutErrors.242 = Counter32: 0 IF-MIB::ifOutErrors.542 = 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.25 = Gauge32: 0 IF-MIB::ifOutQLen.26 = Gauge32: 0 IF-MIB::ifOutQLen.27 = Gauge32: 0 IF-MIB::ifOutQLen.238 = Gauge32: 0 IF-MIB::ifOutQLen.240 = Gauge32: 0 IF-MIB::ifOutQLen.242 = Gauge32: 0 IF-MIB::ifOutQLen.542 = 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.25 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.26 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.27 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.238 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.240 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.242 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.542 = 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:10 up up 3 eth1 ethernetCsmacd 1500 0 de:ad:be:ef:6c:11 down down 4 ip_vti0 tunnel 1480 0 down down 25 gre0 tunnel 1476 0 down down 26 gretap0 ethernetCsmacd 1462 0 down down 27 erspan0 ethernetCsmacd 1450 0 down down 238 tunl0 tunnel 1480 0 down down 240 ip6tnl0 tunnel 1452 0 down down 242 sit0 tunnel 1480 0 down down 543 A ethernetCsmacd 65575 0 d6:4a:3a:b7:be:f9 up up SNMP table IF-MIB::ifTable, part 2 ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors ifInUnknownProtos 0:0:00:00.00 1169935 0 0 0 0 0 0:0:00:00.00 834960865 0 0 166 0 0 0:0:00:00.00 1819489747 0 0 13 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 1169935 9020 0 0 0 0 3063932627 5558482 0 0 0 0 1758372385 10865909 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