[ale] simple routing question

[Dow Hurst]

I have a Class C subnet and I want to firewall 10 IPs of that subnet off
from the rest of the Internet.  As far as I understand, I must lose two
IPs and subnet the subnet so that routing thru the firewall will take
place correctly.  Is there another way?  I want inbound connections to
be able to contact a machine inside the firewall so NAT isn't possible,
correct?
Is there a way to treat the firewall like a bridge instead of a router?
Thanks,
Dow

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__________________________________________________________
Dow Hurst                   Office: 770-499-3428
Systems Support Specialist  Fax:    770-423-6744
1000 Chastain Rd.
Chemistry Department SC428  Email:dhurst at kennesaw.edu
Kennesaw State University         Dow.Hurst at mindspring.com
Kennesaw, GA 30144
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