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
Created directory: /var/lib/snmp/cert_indexes 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.141 = INTEGER: 141 IF-MIB::ifIndex.142 = INTEGER: 142 IF-MIB::ifIndex.143 = INTEGER: 143 IF-MIB::ifIndex.157 = INTEGER: 157 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.141 = STRING: gre0 IF-MIB::ifDescr.142 = STRING: gretap0 IF-MIB::ifDescr.143 = STRING: erspan0 IF-MIB::ifDescr.157 = 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.141 = INTEGER: tunnel(131) IF-MIB::ifType.142 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.143 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.157 = 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.141 = INTEGER: 1476 IF-MIB::ifMtu.142 = INTEGER: 1462 IF-MIB::ifMtu.143 = INTEGER: 1450 IF-MIB::ifMtu.157 = 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.141 = Gauge32: 0 IF-MIB::ifSpeed.142 = Gauge32: 0 IF-MIB::ifSpeed.143 = Gauge32: 0 IF-MIB::ifSpeed.157 = 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.141 = STRING: IF-MIB::ifPhysAddress.142 = STRING: IF-MIB::ifPhysAddress.143 = STRING: IF-MIB::ifPhysAddress.157 = STRING: 2e:14:e:4a:86:71 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.141 = INTEGER: down(2) IF-MIB::ifAdminStatus.142 = INTEGER: down(2) IF-MIB::ifAdminStatus.143 = INTEGER: down(2) IF-MIB::ifAdminStatus.157 = 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.141 = INTEGER: down(2) IF-MIB::ifOperStatus.142 = INTEGER: down(2) IF-MIB::ifOperStatus.143 = INTEGER: down(2) IF-MIB::ifOperStatus.157 = 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.141 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.142 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.143 = Timeticks: (0) 0:00:00.00 IF-MIB::ifLastChange.157 = Timeticks: (0) 0:00:00.00 IF-MIB::ifInOctets.1 = Counter32: 213196 IF-MIB::ifInOctets.2 = Counter32: 756302036 IF-MIB::ifInOctets.3 = Counter32: 3156065596 IF-MIB::ifInOctets.4 = Counter32: 0 IF-MIB::ifInOctets.141 = Counter32: 0 IF-MIB::ifInOctets.142 = Counter32: 0 IF-MIB::ifInOctets.143 = Counter32: 0 IF-MIB::ifInOctets.157 = 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.141 = Counter32: 0 IF-MIB::ifInUcastPkts.142 = Counter32: 0 IF-MIB::ifInUcastPkts.143 = Counter32: 0 IF-MIB::ifInUcastPkts.157 = 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.141 = Counter32: 0 IF-MIB::ifInNUcastPkts.142 = Counter32: 0 IF-MIB::ifInNUcastPkts.143 = Counter32: 0 IF-MIB::ifInNUcastPkts.157 = Counter32: 0 IF-MIB::ifInDiscards.1 = Counter32: 0 IF-MIB::ifInDiscards.2 = Counter32: 19 IF-MIB::ifInDiscards.3 = Counter32: 14 IF-MIB::ifInDiscards.4 = Counter32: 0 IF-MIB::ifInDiscards.141 = Counter32: 0 IF-MIB::ifInDiscards.142 = Counter32: 0 IF-MIB::ifInDiscards.143 = Counter32: 0 IF-MIB::ifInDiscards.157 = 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.141 = Counter32: 0 IF-MIB::ifInErrors.142 = Counter32: 0 IF-MIB::ifInErrors.143 = Counter32: 0 IF-MIB::ifInErrors.157 = 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.141 = Counter32: 0 IF-MIB::ifInUnknownProtos.142 = Counter32: 0 IF-MIB::ifInUnknownProtos.143 = Counter32: 0 IF-MIB::ifInUnknownProtos.157 = Counter32: 0 IF-MIB::ifOutOctets.1 = Counter32: 213196 IF-MIB::ifOutOctets.2 = Counter32: 1966394 IF-MIB::ifOutOctets.3 = Counter32: 3156097566 IF-MIB::ifOutOctets.4 = Counter32: 0 IF-MIB::ifOutOctets.141 = Counter32: 0 IF-MIB::ifOutOctets.142 = Counter32: 0 IF-MIB::ifOutOctets.143 = Counter32: 0 IF-MIB::ifOutOctets.157 = Counter32: 0 IF-MIB::ifOutUcastPkts.1 = Counter32: 1272 IF-MIB::ifOutUcastPkts.2 = Counter32: 20208 IF-MIB::ifOutUcastPkts.3 = Counter32: 5194550 IF-MIB::ifOutUcastPkts.4 = Counter32: 0 IF-MIB::ifOutUcastPkts.141 = Counter32: 0 IF-MIB::ifOutUcastPkts.142 = Counter32: 0 IF-MIB::ifOutUcastPkts.143 = Counter32: 0 IF-MIB::ifOutUcastPkts.157 = 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.141 = Counter32: 0 IF-MIB::ifOutNUcastPkts.142 = Counter32: 0 IF-MIB::ifOutNUcastPkts.143 = Counter32: 0 IF-MIB::ifOutNUcastPkts.157 = 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.141 = Counter32: 0 IF-MIB::ifOutDiscards.142 = Counter32: 0 IF-MIB::ifOutDiscards.143 = Counter32: 0 IF-MIB::ifOutDiscards.157 = 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.141 = Counter32: 0 IF-MIB::ifOutErrors.142 = Counter32: 0 IF-MIB::ifOutErrors.143 = Counter32: 0 IF-MIB::ifOutErrors.157 = 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.141 = Gauge32: 0 IF-MIB::ifOutQLen.142 = Gauge32: 0 IF-MIB::ifOutQLen.143 = Gauge32: 0 IF-MIB::ifOutQLen.157 = 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.141 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.142 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.143 = OID: SNMPv2-SMI::zeroDotZero IF-MIB::ifSpecific.157 = 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 4 ip_vti0 tunnel 1480 0 down down 141 gre0 tunnel 1476 0 down down 142 gretap0 ethernetCsmacd 1462 0 down down 143 erspan0 ethernetCsmacd 1450 0 down down 158 A ethernetCsmacd 65575 0 96:b2:a1:ef:23:86 up up SNMP table IF-MIB::ifTable, part 2 ifLastChange ifInOctets ifInUcastPkts ifInNUcastPkts ifInDiscards ifInErrors ifInUnknownProtos 0:0:00:00.00 213500 0 0 0 0 0 0:0:00:00.00 756306075 0 0 19 0 0 0:0:00:00.00 3156065596 0 0 14 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 213500 1276 0 0 0 0 1973992 20241 0 0 0 0 3156097566 5194550 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