Risk in adverting intranet on the Internet

[Quadri, Jay]

I should have probably posted this to the firewall mailing list.  But I'll
like to hear your point anyway.

Assuming the following:

1.Your company is too big to roll out split DNS, for various reasons such as
financial, lack of skill world wide etc.

2. Each Business Unit or branch has a firewall to protect herself from
hackers.

3. Assuming their is no NAT in place in some cases.

Do you see any major risk in advertising Internal names on the Internet DNS
server.  Remember that Company IP address is publicly available anyway (e.g.
hp = 15.0.0.0).