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CCSP SNPA Quick Reference by Brandon James Carroll

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Chapter 8. Understanding Transparent Firewall Mode

Overview of Transparent Firewalls

The major difference to understand between routed and transparent mode firewalls is that when you operate in transparent mode, you are telling the security appliance that it is to act like a bridge. This means it is to be based on MAC addresses. It will no longer separate IP subnets; instead, it will transparently bridge traffic that is allowed by the security policy.

Benefits and limitations

You might wonder what the benefits to this mode of operation are. One benefit is that you can deploy without modifying the existing network. There is no need to change your routing scheme, and there is no need to change default gateways on host machines. You also do not need ...

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