how to setup multiple IP from ISP

[bigmac5753]

I want to purchase a block of IPs from my ISP.

I have enquired about this and they inform me that one IP will be assigned to the WAN, the rest will be on the LAN.
How does this work?  I have never heard of such a thing.

I assumed the whole block would be on the WAN and I would setup virtual IPs.

any help appreciated.

[Maurice]

That means they will route the additional IP addresses to the WAN address. That's not unusual at all. Whether you add these additional addresses to the WAN interface (as virtual IPs) or directly to hosts in the LAN is your choice.

Cheers
Maurice

[gdur]

Setting up virtual IP's is indeed the way to go.

[Maurice]

@gdur Only if you want to do NAT. Otherwise, configure the IP addresses on the hosts themselves.

[Patrick M. Hausen]

Routing is almost always better than NAT. So it all depends on whether you will get a routable prefix, e.g. a /29 or /28 in addition to your single WAN address or a block of consecutive addresses that does not lead itself to routing easily. In that case virtual IPs and NAT might be preferable over routing hacks.