Weird/Unusual IP Range from ISP

hi

I have an ADSL connection with a managed IP range (8 adresses). Now my ISP gave me next to the 8 IP's a so called WAN IP which is not in the same range as the other static adresses i have.

Before that I always had a range which, if I'm not wrong consisted of:

1 IP for the network
1 IP for broadcast
1 IP for the router

and the rest for my own individual use.

Now I have

1 WAN IP 62.167.3... for my ADSL router
and a range of eight in another subnet 62.167.4...

my problem is, that I'm not able to set a fixed adress of the range to any server whithin my network and get it to connect to the Internet. I'm not sure what my gateway might be now, because the router IP is in another subnet than the fixed IP I want to give my servers...

Has anyone ever seen this before? I'm really stuck here and I should set up some servers for business use.

When I called the ISP they told me to use a Many2Many routing which wouldn't work as expected and another time they told me to use the network-adress of the range as gateway what also didn't work...

Thanks for any hints in advance

The different IP might be for the WAN side of the router. Every router has at least two interfaces. In your case LAN and WAN. Your PCs will gateway to the LAN IP address of the router. Typically the ISP sets up and configures the WAN IP address of the router unless you provide your own router and have to configure it yourself.