Reserved DHCP IP address and PIX510

I have PIX510 as a firewall and my ISP offers 5 reserved DHCP IP addresses. To get IP assigned to the system I have to register MAC address of the system using ISP's web interface. I have two web (port 80) servers in DMZ that I need to map external to DMZ addresses. Is there any way that I can obtain second IP (assign to same interface?, different MAC?) or I have to ask ISP for real static ip addresses

Thank you

Reply to
John Strow
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