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.11 = INTEGER: 11 IF-MIB::ifIndex.12 = INTEGER: 12 IF-MIB::ifIndex.13 = INTEGER: 13 IF-MIB::ifIndex.20 = INTEGER: 20 IF-MIB::ifIndex.23 = INTEGER: 23 IF-MIB::ifIndex.25 = INTEGER: 25 IF-MIB::ifIndex.280 = INTEGER: 280 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.11 = STRING: gre0 IF-MIB::ifDescr.12 = STRING: gretap0 IF-MIB::ifDescr.13 = STRING: erspan0 IF-MIB::ifDescr.20 = STRING: tunl0 IF-MIB::ifDescr.23 = STRING: ip6tnl0 IF-MIB::ifDescr.25 = STRING: sit0 IF-MIB::ifDescr.280 = 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.11 = INTEGER: tunnel(131) IF-MIB::ifType.12 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.13 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.20 = INTEGER: tunnel(131) IF-MIB::ifType.23 = INTEGER: tunnel(131) IF-MIB::ifType.25 = INTEGER: tunnel(131) IF-MIB::ifType.280 = 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.11 = INTEGER: 1476 IF-MIB::ifMtu.12 = INTEGER: 1462 IF-MIB::ifMtu.13 = INTEGER: 1450 IF-MIB::ifMtu.20 = INTEGER: 1480 IF-MIB::ifMtu.23 = INTEGER: 1452 IF-MIB::ifMtu.25 = INTEGER: 1480 IF-MIB::ifMtu.280 = 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.11 = Gauge32: 0 IF-MIB::ifSpeed.12 = Gauge32: 0 IF-MIB::ifSpeed.13 = Gauge32: 0 IF-MIB::ifSpeed.20 = Gauge32: 0 IF-MIB::ifSpeed.23 = Gauge32: 0 IF-MIB::ifSpeed.25 = Gauge32: 0 IF-MIB::ifSpeed.280 = 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.11 = STRING: IF-MIB::ifPhysAddress.12 = STRING: IF-MIB::ifPhysAddress.13 = STRING: IF-MIB::ifPhysAddress.20 = STRING: IF-MIB::ifPhysAddress.23 = STRING: IF-MIB::ifPhysAddress.25 = STRING: IF-MIB::ifPhysAddress.280 = STRING: 7a:2e:9b:ba:92:44 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.11 = INTEGER: down(2) IF-MIB::ifAdminStatus.12 = INTEGER: down(2) IF-MIB::ifAdminStatus.13 = INTEGER: down(2) IF-MIB::ifAdminStatus.20 = INTEGER: down(2) IF-MIB::ifAdminStatus.23 = INTEGER: down(2) IF-MIB::ifAdminStatus.25 = INTEGER: down(2) IF-MIB::ifAdminStatus.280 = 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.11 = INTEGER: down(2) IF-MIB::ifOperStatus.12 = INTEGER: down(2) IF-MIB::ifOperStatus.13 = INTEGER: down(2) IF-MIB::ifOperStatus.20 = INTEGER: down(2) IF-MIB::ifOperStatus.23 = INTEGER: down(2) IF-MIB::ifOperStatus.25 = INTEGER: down(2) IF-MIB::ifOperStatus.280 = 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.11 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.12 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.13 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.20 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.23 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.25 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.280 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 300329 IF-MIB::ifInOctets.2 = Counter32: 658870842 IF-MIB::ifInOctets.3 = Counter32: 4077098350 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.11 = Counter32: 0 IF-MIB::ifInOctets.12 = Counter32: 0 IF-MIB::ifInOctets.13 = Counter32: 0 IF-MIB::ifInOctets.20 = Counter32: 0 IF-MIB::ifInOctets.23 = Counter32: 0 IF-MIB::ifInOctets.25 = Counter32: 0 IF-MIB::ifInOctets.280 = 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.11 = Counter32: 0 IF-MIB::ifInUcastPkts.12 = Counter32: 0 IF-MIB::ifInUcastPkts.13 = Counter32: 0 IF-MIB::ifInUcastPkts.20 = Counter32: 0 IF-MIB::ifInUcastPkts.23 = Counter32: 0 IF-MIB::ifInUcastPkts.25 = Counter32: 0 IF-MIB::ifInUcastPkts.280 = 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.11 = Counter32: 0 IF-MIB::ifInNUcastPkts.12 = Counter32: 0 IF-MIB::ifInNUcastPkts.13 = Counter32: 0 IF-MIB::ifInNUcastPkts.20 = Counter32: 0 IF-MIB::ifInNUcastPkts.23 = Counter32: 0 IF-MIB::ifInNUcastPkts.25 = Counter32: 0 IF-MIB::ifInNUcastPkts.280 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 163 IF-MIB::ifInDiscards.3 = Counter32: 13 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.11 = Counter32: 0 IF-MIB::ifInDiscards.12 = Counter32: 0 IF-MIB::ifInDiscards.13 = Counter32: 0 IF-MIB::ifInDiscards.20 = Counter32: 0 IF-MIB::ifInDiscards.23 = Counter32: 0 IF-MIB::ifInDiscards.25 = Counter32: 0 IF-MIB::ifInDiscards.280 = 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.11 = Counter32: 0 IF-MIB::ifInErrors.12 = Counter32: 0 IF-MIB::ifInErrors.13 = Counter32: 0 IF-MIB::ifInErrors.20 = Counter32: 0 IF-MIB::ifInErrors.23 = Counter32: 0 IF-MIB::ifInErrors.25 = Counter32: 0 IF-MIB::ifInErrors.280 = 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.11 = Counter32: 0 IF-MIB::ifInUnknownProtos.12 = Counter32: 0 IF-MIB::ifInUnknownProtos.13 = Counter32: 0 IF-MIB::ifInUnknownProtos.20 = Counter32: 0 IF-MIB::ifInUnknownProtos.23 = Counter32: 0 IF-MIB::ifInUnknownProtos.25 = Counter32: 0 IF-MIB::ifInUnknownProtos.280 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 300329 IF-MIB::ifOutOctets.2 = Counter32: 3955028188 IF-MIB::ifOutOctets.3 = Counter32: 3794596602 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.11 = Counter32: 0 IF-MIB::ifOutOctets.12 = Counter32: 0 IF-MIB::ifOutOctets.13 = Counter32: 0 IF-MIB::ifOutOctets.20 = Counter32: 0 IF-MIB::ifOutOctets.23 = Counter32: 0 IF-MIB::ifOutOctets.25 = Counter32: 0 IF-MIB::ifOutOctets.280 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 2830 IF-MIB::ifOutUcastPkts.2 = Counter32: 3227442 IF-MIB::ifOutUcastPkts.3 = Counter32: 9238286 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.11 = Counter32: 0 IF-MIB::ifOutUcastPkts.12 = Counter32: 0 IF-MIB::ifOutUcastPkts.13 = Counter32: 0 IF-MIB::ifOutUcastPkts.20 = Counter32: 0 IF-MIB::ifOutUcastPkts.23 = Counter32: 0 IF-MIB::ifOutUcastPkts.25 = Counter32: 0 IF-MIB::ifOutUcastPkts.280 = 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.11 = Counter32: 0 IF-MIB::ifOutNUcastPkts.12 = Counter32: 0 IF-MIB::ifOutNUcastPkts.13 = Counter32: 0 IF-MIB::ifOutNUcastPkts.20 = Counter32: 0 IF-MIB::ifOutNUcastPkts.23 = Counter32: 0 IF-MIB::ifOutNUcastPkts.25 = Counter32: 0 IF-MIB::ifOutNUcastPkts.280 = 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.11 = Counter32: 0 IF-MIB::ifOutDiscards.12 = Counter32: 0 IF-MIB::ifOutDiscards.13 = Counter32: 0 IF-MIB::ifOutDiscards.20 = Counter32: 0 IF-MIB::ifOutDiscards.23 = Counter32: 0 IF-MIB::ifOutDiscards.25 = Counter32: 0 IF-MIB::ifOutDiscards.280 = 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.11 = Counter32: 0 IF-MIB::ifOutErrors.12 = Counter32: 0 IF-MIB::ifOutErrors.13 = Counter32: 0 IF-MIB::ifOutErrors.20 = Counter32: 0 IF-MIB::ifOutErrors.23 = Counter32: 0 IF-MIB::ifOutErrors.25 = Counter32: 0 IF-MIB::ifOutErrors.280 = 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.11 = Gauge32: 0 IF-MIB::ifOutQLen.12 = Gauge32: 0 IF-MIB::ifOutQLen.13 = Gauge32: 0 IF-MIB::ifOutQLen.20 = Gauge32: 0 IF-MIB::ifOutQLen.23 = Gauge32: 0 IF-MIB::ifOutQLen.25 = Gauge32: 0 IF-MIB::ifOutQLen.280 = 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.11 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.12 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.13 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.20 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.23 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.25 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.280 = 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 11 gre0 tunnel 1476 0 down 12 gretap0 ethernetCsmacd 1462 0 down 13 erspan0 ethernetCsmacd 1450 0 down 20 tunl0 tunnel 1480 0 down 23 ip6tnl0 tunnel 1452 0 down 25 sit0 tunnel 1480 0 down 281 A ethernetCsmacd 65575 0 d6:34:44:aa:b5:9d up SNMP table IF-MIB::ifTable, part 2 ifOperStatus ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors up 0:0:00:00.00 300329 0 0 0 0 up 0:0:00:00.00 658876030 0 0 163 0 down 0:0:00:00.00 4077098350 0 0 13 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 300329 2830 0 0 0 0 0 3955037912 3227481 0 0 0 0 0 3794596602 9238286 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