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.4 = INTEGER: 4 IF-MIB::ifIndex.27 = INTEGER: 27 IF-MIB::ifIndex.28 = INTEGER: 28 IF-MIB::ifIndex.29 = INTEGER: 29 IF-MIB::ifIndex.134 = INTEGER: 134 IF-MIB::ifIndex.136 = INTEGER: 136 IF-MIB::ifIndex.138 = INTEGER: 138 IF-MIB::ifIndex.252 = INTEGER: 252 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.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.134 = STRING: sit0 IF-MIB::ifDescr.136 = STRING: ip6tnl0 IF-MIB::ifDescr.138 = STRING: tunl0 IF-MIB::ifDescr.252 = 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.134 = INTEGER: tunnel(131) IF-MIB::ifType.136 = INTEGER: tunnel(131) IF-MIB::ifType.138 = INTEGER: tunnel(131) IF-MIB::ifType.252 = 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.134 = INTEGER: 1480 IF-MIB::ifMtu.136 = INTEGER: 1452 IF-MIB::ifMtu.138 = INTEGER: 1480 IF-MIB::ifMtu.252 = 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.134 = Gauge32: 0 IF-MIB::ifSpeed.136 = Gauge32: 0 IF-MIB::ifSpeed.138 = Gauge32: 0 IF-MIB::ifSpeed.252 = 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.27 = STRING: IF-MIB::ifPhysAddress.28 = STRING: IF-MIB::ifPhysAddress.29 = STRING: IF-MIB::ifPhysAddress.134 = STRING: IF-MIB::ifPhysAddress.136 = STRING: IF-MIB::ifPhysAddress.138 = STRING: IF-MIB::ifPhysAddress.252 = STRING: 4a:3e:8e:a9:9c:e9 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.134 = INTEGER: down(2) IF-MIB::ifAdminStatus.136 = INTEGER: down(2) IF-MIB::ifAdminStatus.138 = INTEGER: down(2) IF-MIB::ifAdminStatus.252 = 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.134 = INTEGER: down(2) IF-MIB::ifOperStatus.136 = INTEGER: down(2) IF-MIB::ifOperStatus.138 = INTEGER: down(2) IF-MIB::ifOperStatus.252 = 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.134 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.136 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.138 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.252 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 874830 IF-MIB::ifInOctets.2 = Counter32: 627572530 IF-MIB::ifInOctets.3 = Counter32: 3491606628 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.134 = Counter32: 0 IF-MIB::ifInOctets.136 = Counter32: 0 IF-MIB::ifInOctets.138 = Counter32: 0 IF-MIB::ifInOctets.252 = 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.134 = Counter32: 0 IF-MIB::ifInUcastPkts.136 = Counter32: 0 IF-MIB::ifInUcastPkts.138 = Counter32: 0 IF-MIB::ifInUcastPkts.252 = 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.134 = Counter32: 0 IF-MIB::ifInNUcastPkts.136 = Counter32: 0 IF-MIB::ifInNUcastPkts.138 = Counter32: 0 IF-MIB::ifInNUcastPkts.252 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 180 IF-MIB::ifInDiscards.3 = Counter32: 14 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.134 = Counter32: 0 IF-MIB::ifInDiscards.136 = Counter32: 0 IF-MIB::ifInDiscards.138 = Counter32: 0 IF-MIB::ifInDiscards.252 = 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.134 = Counter32: 0 IF-MIB::ifInErrors.136 = Counter32: 0 IF-MIB::ifInErrors.138 = Counter32: 0 IF-MIB::ifInErrors.252 = 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.134 = Counter32: 0 IF-MIB::ifInUnknownProtos.136 = Counter32: 0 IF-MIB::ifInUnknownProtos.138 = Counter32: 0 IF-MIB::ifInUnknownProtos.252 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 874830 IF-MIB::ifOutOctets.2 = Counter32: 1511578808 IF-MIB::ifOutOctets.3 = Counter32: 960405213 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.134 = Counter32: 0 IF-MIB::ifOutOctets.136 = Counter32: 0 IF-MIB::ifOutOctets.138 = Counter32: 0 IF-MIB::ifOutOctets.252 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 8184 IF-MIB::ifOutUcastPkts.2 = Counter32: 1239979 IF-MIB::ifOutUcastPkts.3 = Counter32: 3777410 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.134 = Counter32: 0 IF-MIB::ifOutUcastPkts.136 = Counter32: 0 IF-MIB::ifOutUcastPkts.138 = Counter32: 0 IF-MIB::ifOutUcastPkts.252 = 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.134 = Counter32: 0 IF-MIB::ifOutNUcastPkts.136 = Counter32: 0 IF-MIB::ifOutNUcastPkts.138 = Counter32: 0 IF-MIB::ifOutNUcastPkts.252 = 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.134 = Counter32: 0 IF-MIB::ifOutDiscards.136 = Counter32: 0 IF-MIB::ifOutDiscards.138 = Counter32: 0 IF-MIB::ifOutDiscards.252 = 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.134 = Counter32: 0 IF-MIB::ifOutErrors.136 = Counter32: 0 IF-MIB::ifOutErrors.138 = Counter32: 0 IF-MIB::ifOutErrors.252 = 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.134 = Gauge32: 0 IF-MIB::ifOutQLen.136 = Gauge32: 0 IF-MIB::ifOutQLen.138 = Gauge32: 0 IF-MIB::ifOutQLen.252 = 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.134 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.136 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.138 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.252 = 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 4 ip_vti0 tunnel 1480 0 down 27 gre0 tunnel 1476 0 down 28 gretap0 ethernetCsmacd 1462 0 down 29 erspan0 ethernetCsmacd 1450 0 down 134 sit0 tunnel 1480 0 down 136 ip6tnl0 tunnel 1452 0 down 138 tunl0 tunnel 1480 0 down 253 A ethernetCsmacd 65575 0 d6:69:c4:57:de:16 up SNMP table IF-MIB::ifTable, part 2 ifOperStatus ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors up 0:0:00:00.00 874830 0 0 0 0 up 0:0:00:00.00 627577726 0 0 180 0 down 0:0:00:00.00 3491606628 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 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 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 874830 8184 0 0 0 0 0 1511588728 1240019 0 0 0 0 0 960405213 3777410 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 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