In some email I received from Todd Vierling, sie wrote:
> How would I do the above for an entire internal network (without one line
> per internal IP)?
> 
> Meaning, there's a network such as:
> 
> 12.34.56.78/24 - external IP of router
> 12.34.77.1/28 - internal IP of router
> 12.34.77.[2-14]/28 - internal IPs of systems
> 
> Would I have to put a map line for each one of the IPs 12.34.77.2 through
> 12.34.77.14?  Or is there a way to do this so the entire /28 gets covered
> in one entry, without rewriting any addresses or ports?

map foo0 12.34.77.0/28 -> 0/0 mssclamp 1452

(you should be on icb asking about this!)