Can't get DHCP failover to work [pictures of setup/config]



  • 5 Interfaces, two pfSense boxes

    WAN
    SYNC (192.168.1.0/30)
    LAN (Management) (192.168.10.0/24)
    OFFICE (192.168.20.0/24)
    WIFI (172.16.0.0/21)

    pfSense #1

    WAN: 123.123.123.226
    SYNC: 192.168.1.1
    LAN 192.168.10.2
    OFFICE: 192.168.20.2
    WIFI: 172.16.0.2

    PfSense #2:

    WAN: 123.123.132.227
    SYNC: 192.168.1.2
    LAN: 192.168.10.3
    OFFICE 192.168.20.3
    WIFI: 172.16.0.3

    CARP IPs:

    WAN: 123.123.123.225
    LAN 192.168.10.1
    OFFICE: 192.168.20.1
    WIFI: 172.16.0.1

    I have carp configured correctly. I have posted pictures of my current configuration. My problem is with DHCP Failover IP. The DHCP lease page shows communication error, state unknown, etc.











  • Okay, I think I figured this out based on a really old post from 2011. Apparently, when enabling DHCP Failover, you only specify the failover IP on the first interface performing DHCP, not every single interface. Is this correct?


  • Rebel Alliance Developer Netgate

    @vbman213:

    Okay, I think I figured this out based on a really old post from 2011. Apparently, when enabling DHCP Failover, you only specify the failover IP on the first interface performing DHCP, not every single interface. Is this correct?

    You must specify a failover IP on every interface that does DHCP, on both the master and slave.