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.62 = INTEGER: 62 IF-MIB::ifIndex.63 = INTEGER: 63 IF-MIB::ifIndex.64 = INTEGER: 64 IF-MIB::ifIndex.137 = INTEGER: 137 IF-MIB::ifIndex.140 = INTEGER: 140 IF-MIB::ifIndex.142 = INTEGER: 142 IF-MIB::ifIndex.501 = INTEGER: 501 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.62 = STRING: gre0 IF-MIB::ifDescr.63 = STRING: gretap0 IF-MIB::ifDescr.64 = STRING: erspan0 IF-MIB::ifDescr.137 = STRING: ip6tnl0 IF-MIB::ifDescr.140 = STRING: sit0 IF-MIB::ifDescr.142 = STRING: tunl0 IF-MIB::ifDescr.501 = 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.62 = INTEGER: tunnel(131) IF-MIB::ifType.63 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.64 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.137 = INTEGER: tunnel(131) IF-MIB::ifType.140 = INTEGER: tunnel(131) IF-MIB::ifType.142 = INTEGER: tunnel(131) IF-MIB::ifType.501 = 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.62 = INTEGER: 1476 IF-MIB::ifMtu.63 = INTEGER: 1462 IF-MIB::ifMtu.64 = INTEGER: 1450 IF-MIB::ifMtu.137 = INTEGER: 1452 IF-MIB::ifMtu.140 = INTEGER: 1480 IF-MIB::ifMtu.142 = INTEGER: 1480 IF-MIB::ifMtu.501 = 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.62 = Gauge32: 0 IF-MIB::ifSpeed.63 = Gauge32: 0 IF-MIB::ifSpeed.64 = Gauge32: 0 IF-MIB::ifSpeed.137 = Gauge32: 0 IF-MIB::ifSpeed.140 = Gauge32: 0 IF-MIB::ifSpeed.142 = Gauge32: 0 IF-MIB::ifSpeed.501 = 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.62 = STRING: IF-MIB::ifPhysAddress.63 = STRING: IF-MIB::ifPhysAddress.64 = STRING: IF-MIB::ifPhysAddress.137 = STRING: IF-MIB::ifPhysAddress.140 = STRING: IF-MIB::ifPhysAddress.142 = STRING: IF-MIB::ifPhysAddress.501 = STRING: 96:2a:1e:6b:5e:af 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.62 = INTEGER: down(2) IF-MIB::ifAdminStatus.63 = INTEGER: down(2) IF-MIB::ifAdminStatus.64 = INTEGER: down(2) IF-MIB::ifAdminStatus.137 = INTEGER: down(2) IF-MIB::ifAdminStatus.140 = INTEGER: down(2) IF-MIB::ifAdminStatus.142 = INTEGER: down(2) IF-MIB::ifAdminStatus.501 = 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.62 = INTEGER: down(2) IF-MIB::ifOperStatus.63 = INTEGER: down(2) IF-MIB::ifOperStatus.64 = INTEGER: down(2) IF-MIB::ifOperStatus.137 = INTEGER: down(2) IF-MIB::ifOperStatus.140 = INTEGER: down(2) IF-MIB::ifOperStatus.142 = INTEGER: down(2) IF-MIB::ifOperStatus.501 = 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.62 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.63 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.64 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.137 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.140 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.142 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.501 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 1071358 IF-MIB::ifInOctets.2 = Counter32: 631347781 IF-MIB::ifInOctets.3 = Counter32: 1936854777 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.62 = Counter32: 0 IF-MIB::ifInOctets.63 = Counter32: 0 IF-MIB::ifInOctets.64 = Counter32: 0 IF-MIB::ifInOctets.137 = Counter32: 0 IF-MIB::ifInOctets.140 = Counter32: 0 IF-MIB::ifInOctets.142 = Counter32: 0 IF-MIB::ifInOctets.501 = 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.62 = Counter32: 0 IF-MIB::ifInUcastPkts.63 = Counter32: 0 IF-MIB::ifInUcastPkts.64 = Counter32: 0 IF-MIB::ifInUcastPkts.137 = Counter32: 0 IF-MIB::ifInUcastPkts.140 = Counter32: 0 IF-MIB::ifInUcastPkts.142 = Counter32: 0 IF-MIB::ifInUcastPkts.501 = 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.62 = Counter32: 0 IF-MIB::ifInNUcastPkts.63 = Counter32: 0 IF-MIB::ifInNUcastPkts.64 = Counter32: 0 IF-MIB::ifInNUcastPkts.137 = Counter32: 0 IF-MIB::ifInNUcastPkts.140 = Counter32: 0 IF-MIB::ifInNUcastPkts.142 = Counter32: 0 IF-MIB::ifInNUcastPkts.501 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 187 IF-MIB::ifInDiscards.3 = Counter32: 13 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.62 = Counter32: 0 IF-MIB::ifInDiscards.63 = Counter32: 0 IF-MIB::ifInDiscards.64 = Counter32: 0 IF-MIB::ifInDiscards.137 = Counter32: 0 IF-MIB::ifInDiscards.140 = Counter32: 0 IF-MIB::ifInDiscards.142 = Counter32: 0 IF-MIB::ifInDiscards.501 = 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.62 = Counter32: 0 IF-MIB::ifInErrors.63 = Counter32: 0 IF-MIB::ifInErrors.64 = Counter32: 0 IF-MIB::ifInErrors.137 = Counter32: 0 IF-MIB::ifInErrors.140 = Counter32: 0 IF-MIB::ifInErrors.142 = Counter32: 0 IF-MIB::ifInErrors.501 = 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.62 = Counter32: 0 IF-MIB::ifInUnknownProtos.63 = Counter32: 0 IF-MIB::ifInUnknownProtos.64 = Counter32: 0 IF-MIB::ifInUnknownProtos.137 = Counter32: 0 IF-MIB::ifInUnknownProtos.140 = Counter32: 0 IF-MIB::ifInUnknownProtos.142 = Counter32: 0 IF-MIB::ifInUnknownProtos.501 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 1071358 IF-MIB::ifOutOctets.2 = Counter32: 2864532886 IF-MIB::ifOutOctets.3 = Counter32: 3062744694 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.62 = Counter32: 0 IF-MIB::ifOutOctets.63 = Counter32: 0 IF-MIB::ifOutOctets.64 = Counter32: 0 IF-MIB::ifOutOctets.137 = Counter32: 0 IF-MIB::ifOutOctets.140 = Counter32: 0 IF-MIB::ifOutOctets.142 = Counter32: 0 IF-MIB::ifOutOctets.501 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 9479 IF-MIB::ifOutUcastPkts.2 = Counter32: 2181214 IF-MIB::ifOutUcastPkts.3 = Counter32: 2378086 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.62 = Counter32: 0 IF-MIB::ifOutUcastPkts.63 = Counter32: 0 IF-MIB::ifOutUcastPkts.64 = Counter32: 0 IF-MIB::ifOutUcastPkts.137 = Counter32: 0 IF-MIB::ifOutUcastPkts.140 = Counter32: 0 IF-MIB::ifOutUcastPkts.142 = Counter32: 0 IF-MIB::ifOutUcastPkts.501 = 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.62 = Counter32: 0 IF-MIB::ifOutNUcastPkts.63 = Counter32: 0 IF-MIB::ifOutNUcastPkts.64 = Counter32: 0 IF-MIB::ifOutNUcastPkts.137 = Counter32: 0 IF-MIB::ifOutNUcastPkts.140 = Counter32: 0 IF-MIB::ifOutNUcastPkts.142 = Counter32: 0 IF-MIB::ifOutNUcastPkts.501 = 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.62 = Counter32: 0 IF-MIB::ifOutDiscards.63 = Counter32: 0 IF-MIB::ifOutDiscards.64 = Counter32: 0 IF-MIB::ifOutDiscards.137 = Counter32: 0 IF-MIB::ifOutDiscards.140 = Counter32: 0 IF-MIB::ifOutDiscards.142 = Counter32: 0 IF-MIB::ifOutDiscards.501 = 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.62 = Counter32: 0 IF-MIB::ifOutErrors.63 = Counter32: 0 IF-MIB::ifOutErrors.64 = Counter32: 0 IF-MIB::ifOutErrors.137 = Counter32: 0 IF-MIB::ifOutErrors.140 = Counter32: 0 IF-MIB::ifOutErrors.142 = Counter32: 0 IF-MIB::ifOutErrors.501 = 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.62 = Gauge32: 0 IF-MIB::ifOutQLen.63 = Gauge32: 0 IF-MIB::ifOutQLen.64 = Gauge32: 0 IF-MIB::ifOutQLen.137 = Gauge32: 0 IF-MIB::ifOutQLen.140 = Gauge32: 0 IF-MIB::ifOutQLen.142 = Gauge32: 0 IF-MIB::ifOutQLen.501 = 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.62 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.63 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.64 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.137 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.140 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.142 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.501 = 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:0 up 3 Red Hat, Inc Device 0001 ethernetCsmacd 1500 0 de:ad:be:ef:6c:1 down 4 ip_vti0 tunnel 1480 0 down 62 gre0 tunnel 1476 0 down 63 gretap0 ethernetCsmacd 1462 0 down 64 erspan0 ethernetCsmacd 1450 0 down 137 ip6tnl0 tunnel 1452 0 down 140 sit0 tunnel 1480 0 down 142 tunl0 tunnel 1480 0 down 502 A ethernetCsmacd 65575 0 92:ee:72:a:75:8d up SNMP table IF-MIB::ifTable, part 2 ifOperStatus ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors up 0:0:00:00.00 1072018 0 0 0 0 up 0:0:00:00.00 631352977 0 0 187 0 down 0:0:00:00.00 1936854777 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 1072018 9487 0 0 0 0 0 2864542807 2181254 0 0 0 0 0 3062744694 2378086 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