Dear all
my wan connection is 192.168.1.6/30
my gateway is 192.168.1.5
i have a public IP’s xxx.xx.1.0/28
i want to use 1 ip (xxx.xx.1.1) on my Mikrotik Router and route other IP to my client which connected to me with 172.1.1.1/30
I assume that public IPs get routed to your RB. Meaning packets with dst-address set to one of those will arrive at WAN interface whether you configure anything on your router or not.
To use one of those IP addresses, you can simply srart using one in your src-nat and dst-nat rules. If you really want to use it directly on RB (I can’t think of any reason for that though), you can set it (as an additional one) to any of router’s interfaces, possibly on LAN interface.
To assign one address to one of your clients, set-up static route for that IP address (/32 netmask) using gateway address set to IP address of your client’s router. Client router will have to be configured similarly as yours (e.g. use that address in src-nat and dst-nat rules).