Time-Options

These scenarios check DHCP server time synchronization options. This includes: ntp-server, time-server, and time-offset.

Test NTP-Server Single

Description

This scenario checks the ntp-server option with a single NTP server. The DHCP server configures one NTP server, and the client receives it in the lease. Verification is done via monitor-db and packet capture to confirm the server actually sends NTP (42) option in the DHCP ACK.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.0.0.1/24
set service dhcp-server shared-network ntp-single subnet 10.0.0.0/24 options ntp-server 10.0.0.10
set service dhcp-server shared-network ntp-single subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.5
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 dhcp
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces ethernet eth0 show at DUT1 and check if output contains the following tokens:

10.0.0.5

Step 4: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Show output
10.0.0.10

Step 5: Run command traffic dump monitor detail interface eth0 filter "port 67 or port 68" packets 10 at DUT0.

Step 6: Run command service dhcp-client renew interface eth0 at DUT1 and expect this output:

Test NTP-Server Multiple

Description

This scenario checks the ntp-server option with multiple NTP servers. The DHCP server configures three NTP servers, and the client receives all of them.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.0.0.1/24
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.10
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.11
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.12
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.5
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 dhcp
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces ethernet eth0 show at DUT1 and check if output contains the following tokens:

10.0.0.5

Step 4: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Test NTP-Server VRF

Description

This scenario checks the ntp-server option when the DHCP server is configured with VRF. Multiple NTP servers are configured in a VRF environment, and the client receives them correctly.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.0.0.1/24
set interfaces ethernet eth0 vrf VRF0
set service dhcp-server shared-network ntp-vrf local-vrf VRF0
set service dhcp-server shared-network ntp-vrf subnet 10.0.0.0/24 options ntp-server 10.0.0.10
set service dhcp-server shared-network ntp-vrf subnet 10.0.0.0/24 options ntp-server 10.0.0.11
set service dhcp-server shared-network ntp-vrf subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.5
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf VRF0

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address dhcp
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces ethernet eth0 show at DUT1 and check if output contains the following tokens:

10.0.0.5

Step 4: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Test Change NTP-Server

Description

This scenario checks that NTP servers can be changed dynamically. Configure initial NTP servers, then change them and verify the client receives the new values.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.0.0.1/24
set service dhcp-server shared-network ntp-single subnet 10.0.0.0/24 options ntp-server 10.0.0.10
set service dhcp-server shared-network ntp-single subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.5
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 dhcp
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces ethernet eth0 show at DUT1 and check if output contains the following tokens:

10.0.0.5

Step 4: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Show output
10.0.0.10

Step 5: Modify the following configuration lines in DUT0 :

set service dhcp-server shared-network ntp-single subnet 10.0.0.0/24 options ntp-server 10.0.0.11

Step 6: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Test Remove NTP-Server

Description

This scenario checks that NTP servers can be removed. Configure NTP servers, then remove them and verify they are no longer sent to the client.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.0.0.1/24
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.10
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.11
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options ntp-server 10.0.0.12
set service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.5
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 dhcp
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces ethernet eth0 show at DUT1 and check if output contains the following tokens:

10.0.0.5

Step 4: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output:

Step 5: Modify the following configuration lines in DUT0 :

delete service dhcp-server shared-network ntp-multiple subnet 10.0.0.0/24 options

Step 6: Run command show monitor-db system dhcp interface eth0 ntp-servers at DUT1 and expect this output: