Technical Tip: Configure IPv6 address/gateway for HA Reserved management port

Before FortiOS v7.6.2 and lower versions, HA Reserved management port was possible to configure only IPv4 for the gateway, but not IPv6. In FortiOS v7.6.3, a new option that allows the administrator to add a gateway IPv6 for HA Reserved Management port is included.

Example of HA config, where port 7 is used as the HA Reserved management port. This interface has IPv4 and IPv6 addresses. 

config system interface
    edit "port7"
        set ip 192.168.100.1 255.255.255.0
        set allowaccess ping ssh snmp https
        set type physical
        set alias "HA_MGMT_INT"
        set snmp-index 7
            config ipv6
                set ip6-address 2001:db8:abcd:12::1/120
                set ip6-allowaccess ping https snmp http
            end
    next

end

FortiGate HA configuration:

config system ha
    set group-id 199
    set group-name "HA_Cluster1"
    set mode a-p
    set password ENC xxxxxx
    set hbdev "port10" 10
    set ha-mgmt-status enable
        config ha-mgmt-interfaces
            edit 1
                set interface "port7"
                set gateway 192.168.100.254
                set gateway6 2001:db8:abcd:12::2
            next
        end
    set override disable
end

The newly introduced command:

set gateway6
<IPv6 addr> ip6 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx