Ranges-Advanced

These scenarios check advanced DHCP server range functionality. This includes testing edge cases like range exhaustion, where all available IPs in the range have been assigned, and verifying server behavior in such situations.

Test Range Exhaustion

Description

This scenario checks server behavior when all IPs in the range are exhausted. Configure a small range with only 2 IPs (.5 and .6). Two clients should obtain IPs successfully, but a third client should not be able to obtain an IP (range exhausted).

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 small-range subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.6
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: Set the following configuration in DUT2 :

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

Step 5: Run command interfaces ethernet eth0 show at DUT2 and check if output contains the following tokens:

10.0.0.6

Step 6: Run command service dhcp-server show stats at DUT0 and expect this output:

Test Client Request When No IPs Available

Description

This scenario checks that a client cannot obtain an IP when range is exhausted. With a range of only 1 IP, after the first client obtains it, a second client should fail to get an IP.

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 tiny-range 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: Set the following configuration in DUT2 :

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

Step 5: Run command interfaces ethernet eth0 show at DUT2 and expect this output:

Step 6: Run command service dhcp-server show stats at DUT0 and expect this output:

Test Range Recovery After Lease Release

Description

This scenario checks that IPs become available again after release. After exhausting a range, releasing one IP should make it available for a new 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 small-range subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.6
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: Set the following configuration in DUT2 :

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

Step 5: Run command interfaces ethernet eth0 show at DUT2 and check if output contains the following tokens:

10.0.0.6

Step 6: Run command service dhcp-server show stats at DUT0 and expect this output:

Step 7: Modify the following configuration lines in DUT1 :

delete interfaces

Step 8: Run command service dhcp-server show stats at DUT0 and expect this output:

Step 9: Modify the following configuration lines in DUT2 :

delete interfaces

Step 10: Modify the following configuration lines in DUT2 :

set interfaces ethernet eth0 address dhcp

Step 11: Run command interfaces ethernet eth0 show at DUT2 and expect this output:

Test Range Exhaustion with Static Mappings

Description

This scenario checks range exhaustion when static mappings reserve IPs. A static mapping reserves an IP from the range. With a range of 2 IPs where 1 is reserved, only 1 IP is available for dynamic assignment.

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 range-static subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.6
set service dhcp-server shared-network range-static subnet 10.0.0.0/24 static-mapping reserved ip-address 10.0.0.5
set service dhcp-server shared-network range-static subnet 10.0.0.0/24 static-mapping reserved mac-address '10:00:00:00:00:99'
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:

10.0.0.6

Step 4: Set the following configuration in DUT2 :

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

Step 5: Run command interfaces ethernet eth0 show at DUT2 and expect this output:

Step 6: Run command service dhcp-server show stats at DUT0 and expect this output:

Test Range Exhaustion with VRF

Description

This scenario checks that range exhaustion works correctly in VRF context.

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 small-range-vrf local-vrf VRF0
set service dhcp-server shared-network small-range-vrf subnet 10.0.0.0/24 start 10.0.0.5 stop 10.0.0.6
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: Set the following configuration in DUT2 :

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

Step 5: Run command interfaces ethernet eth0 show at DUT2 and check if output contains the following tokens:

10.0.0.6

Step 6: Run command service dhcp-server show stats at DUT0 and expect this output: