**VyOS 1.4-rolling-202311100309**
**The configurations:
Primary:**
```
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 default-router '192.168.11.1'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 name-server '192.168.11.1'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 domain-name 'vyos.net'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 range 0 start '192.168.11.20'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 range 0 stop '192.168.11.250'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 enable-failover
set service dhcp-server failover source-address '192.168.11.11'
set service dhcp-server failover name 'LAN'
set service dhcp-server failover remote '192.168.11.12'
set service dhcp-server failover status 'primary'
```
**Secondary:**
```
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 default-router '192.168.11.1'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 name-server '192.168.11.1'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 domain-name 'vyos.net'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 range 0 start '192.168.11.20'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 range 0 stop '192.168.11.250'
set service dhcp-server shared-network-name LAN subnet 192.168.11.0/24 enable-failover
set service dhcp-server failover source-address '192.168.11.12'
set service dhcp-server failover name 'LAN'
set service dhcp-server failover remote '192.168.11.11'
set service dhcp-server failover status 'secondary'
```
**Checking:**
```
vyos@Active# run sh dhcp server leases
IP Address MAC address State Lease start Lease expiration Remaining Pool Hostname
-------------- ----------------- ------- ------------------- ------------------- ----------- ------ ---------------
192.168.11.136 00:0c:29:a5:42:d2 active 2023/11/24 12:07:36 2023/11/25 12:07:36 23:04:17 LAN DESKTOP-HBDI2AP
```
```
vyos@Standby# run sh dhcp server leases
IP Address MAC address State Lease start Lease expiration Remaining Pool Hostname
-------------- ----------------- ------- ------------------- ------------------- ----------- ------ ----------
192.168.11.133 00:50:79:66:68:04 active 2023/11/24 12:05:29 2023/11/25 12:05:29 23:01:54 LAN PC5
192.168.11.134 00:50:79:66:68:03 active 2023/11/24 12:13:37 2023/11/25 12:13:37 23:10:02 LAN PC4
```
**But inside /config/dhcpd.leases file we can see the leased IP addresses.**