Firewall/NAT

Need some help to figure out if m0n0wall is something for me. The situation is like this:

I get 10 public IP from my ISP (dynamic using DHCP, changes every once and a while). Today I'm using a switch to allow all computers, ATA-boxes and NAS to directly access the Internet. This works ok but gives me two problems: 1. All my devices are unprotected, no firewall no nothing and 2. When I want to connect to an other computer or my NAS I have to use the public IP and therefore let the traffic go through my ISP's network instead of direct internal access. This makes moving files or streaming media quite slow.

I'm looking for a solution where my devices can communicate with each other on my LAN but still be accessible externaly using the public ip-numbers (using dynDns or similar).

Since I'm not very handy when it comes to firewalls, NAT, routers and stuff I might be way off, but I think my question is: Is it possible for M0n0wall to consume all 10 IP:s (using DHCP) and then map public ip 1 to internal ip 1 and so on? Or is there a better way to do this?

/Burken

m0n0wall will work with multiple WAN IP, but in DHCP mode, I'm not sure exactly how that is suppose to work. DHCP is to give you a device a single IP address, can you assign a device several IP address via DHCP?

I guess you only need the one IP and as long as they will honor the range, you could put the other WAN IP in the proxy arp, but you said they change from time to time? Just means you'll have to keep resetting everything.

I don't understand why your ISP just doesn't give you a static IP range. IP ranges do no good if they keep changing at the whim of the ISP.