Check Sending Link Changes

This scenario shows how to configure a ‘trap-target‘ to send linkDown and linkUp notifications and specifying the source address to be used in those notifications. In addition, the SNMP ‘service snmp monitor traps’ command is checked.

Test SNMP Send Traps

Description

A ‘trap-target‘ is configured to send linkDown and linkUp traps for a user in DUT0 and the ‘monitor’ command is used to check sending notifications in SNMPv3. Setting ‘local-address‘ to DUT0 specifies the source address to use in sent notifications.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces dummy dum0 address 20.0.0.1/24
set interfaces dummy dum1 address 30.0.0.1/24
set interfaces ethernet eth0 address 10.0.0.1/24
set service snmp engine-id 0x80000009010a0101c1
set service snmp trap-target 10.0.0.2 version v3 user USER2TEST
set service snmp user USER2TEST notify-traps link-down
set service snmp user USER2TEST notify-traps link-up
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set protocols static route 20.0.0.0/24 next-hop 10.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Note

Initially, the source address used in notifications is the one corresponding to the interface through which they are sent (10.0.0.1).

Step 3: Run command service snmp monitor traps user USER2TEST engine-id 0x80000009010a0101c1 at DUT1.

Step 4: Modify the following configuration lines in DUT0:

set interfaces dummy dum1 disable

Step 5: Run command service snmp monitor traps user USER2TEST engine-id 0x80000009010a0101c1 at DUT1.

Step 6: Modify the following configuration lines in DUT0:

delete interfaces dummy dum1 disable

Note

After setting the ‘local-address‘ in DUT0, the source address used in notifications will be the one specified in this setting (20.0.0.1).

Step 7: Modify the following configuration lines in DUT0:

set service snmp local-address 20.0.0.1

Step 8: Run command service snmp monitor traps user USER2TEST engine-id 0x80000009010a0101c1 at DUT1.

Step 9: Modify the following configuration lines in DUT0:

set interfaces dummy dum1 disable

Step 10: Run command service snmp monitor traps user USER2TEST engine-id 0x80000009010a0101c1 at DUT1.

Step 11: Modify the following configuration lines in DUT0:

delete interfaces dummy dum1 disable

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Test SNMP Send Informs

Description

A ‘trap-target‘ is configured to send linkDown and linkUp informs for a user in DUT0 and the ‘monitor’ command is used to check sending notifications in SNMPv3. Setting ‘local-address‘ to DUT0 specifies the source address to use in sent notifications.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces dummy dum0 address 20.0.0.1/24
set interfaces dummy dum1 address 30.0.0.1/24
set interfaces ethernet eth0 address 10.0.0.1/24
set service snmp engine-id 0x80000009010a0101c1
set service snmp trap-target 10.0.0.2 version v3 type inform
set service snmp trap-target 10.0.0.2 version v3 user USER2TEST
set service snmp user USER2TEST notify-traps link-down
set service snmp user USER2TEST notify-traps link-up
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set protocols static route 20.0.0.0/24 next-hop 10.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Note

Initially, the source address used in notifications is the one corresponding to the interface through which they are sent (10.0.0.1).

Step 3: Run command service snmp monitor traps user USER2TEST at DUT1.

Step 4: Modify the following configuration lines in DUT0:

set interfaces dummy dum1 disable

Step 5: Run command service snmp monitor traps user USER2TEST at DUT1.

Step 6: Modify the following configuration lines in DUT0:

delete interfaces dummy dum1 disable

Note

After setting the ‘local-address‘ in DUT0, the source address used in notifications will be the one specified in this setting (20.0.0.1).

Step 7: Modify the following configuration lines in DUT0:

set service snmp local-address 20.0.0.1

Step 8: Run command service snmp monitor traps user USER2TEST at DUT1.

Step 9: Modify the following configuration lines in DUT0:

set interfaces dummy dum1 disable

Step 10: Run command service snmp monitor traps user USER2TEST at DUT1.

Step 11: Modify the following configuration lines in DUT0:

delete interfaces dummy dum1 disable

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