[c-nsp] Limiting b/w per IP?

[Hank Nussbacher]

I haven't followed all the new bells and whistles in IOS so maybe 
something new is there that can handle this age old problem for me.

I want to be able to rate limit all IPs so that no single IP on an 
interface can eat more than say 20% of the available b/w (inbound and 
outbound).  I do not want to define every single IP of the segment in an 
ACL but can if the solution is clean.  Not interested in protocol 
rate-control - just IP b/w.

Cisco snippets or URLs welcome.

Thanks,
Hank