IP Public Distribution

we got 1 block IP public let said 212.87.255.0 /24 and will distribut to different sister company… with using router board 44 ether 1 ip is 212.87.255.1/29 this will connect to modem ISP ether 2 IP 212.87.255.9/29 for our web group and montoring, ether 3 IP 212.87.255.26/27 will connect to our Swict layer 2 Vlan and will use for one of our sister company and the rest will use for other sister company we have 3 again and will give /29 each company…

is any body can give me an example for configure at Mikrotik(please do not suggest DHCP) :confused:

what is the best way to do this any sugestions :confused: