[NTLUG:Discuss] internet routing of private IPs causing problems..

[Richard Geoffrion]

Greg Edwards wrote:
> <snipping OP>
> <snip> If your ISP is being cheap and routing their private networks
> on the same hardware as the public network this would create a problem.
>   
which it does.
> You have the high ground, but that doesn't mean you'll win.
>
>   
OK.. I'll press the uppers for them to configure their router at MY 
location to reject private IP ranges.
> I assume that you're running a firewall (i.e. shorewall) on connection?
>   
Well the issue is a bit more complicated than that.  The private IP 
range in question is a host-only VMware guest OS that should NOT be 
pingable when the guest is down...but yet it is because the ISP is 
routing private IPs.
> Another choice would be to give your money to an ISP that provides a
> better service than this. 
Contracts and all makes this less of an option at this point.
>  Your private traffic probably can't get any
> further than your ISP since somewhere down the line you'll hit a router
> that works the way it should.
>   
What if the private IP is something on one of their other customer's 
network??

HOW ABOUT THIS....

Imagine a scenario where I need to do some performance testing on my 
local IP addresses and I ping flood a private IP address that HAPPENS to 
wind up flooding the ISP and the related device. I wonder what kind of 
attention that would get.

-- 
Richard  (just ranting at this point)