hi i have a rb450 MT i have only 1 ISP and they give me a set of 8 public IP and im trying to configure in my router 2 port with 2 public ip. i have my wan port with 217.x.x.68/27 ether1 i made nat to ether2 192.168.0.1/24 and i want to configure my set of ip to ether3 . set of ip 217.x.x.16 - 217.x.x.22 .THNX

Do you have more than one Ethernet port from the ISP? If not, just add the 217.x.x.16 ... 217.x.x.22 (next time show the CIDR prefix please) to the ether1 interface connected to the ISP. If the ISP is providing you two Ethernet interfaces, add the public's to the ether3 and connect that -- but I doubt they gave you two ethernets.

the cidr is /29 . i have only one ethernet port from my isp . how can i set now to the ether3 port the the set of 8 ip?
if you can write the configuration
THNX