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Can I set the same security level on two interface in PIX, ASA and FWSM?

Posted on 2009-04-07
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Can I set the same security level on two interfaces in PIX, ASA and FWSM?

If two DMZs had same security level, what default rule should be? allow or deny any any in two directions ?

Thanks very much!
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Question by:howruaz9
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mrjoltcola earned 500 total points
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Low to high is allowed by default, and high to low is disallowed by default.
Same to same is also disallowed by default, unless you have issued:

same-security-traffice permit inter-interface


This is from the ASA docs, I don't know about the older PIX, but Cisco docs do recommend not relying on this and using explicit ACLs. Hope that helps.
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by:mrjoltcola
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Sorry, I reversed the correct logic in the first sentence.

Correction: High to low is allowed by default, and low to high is disallowed by default.

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by:mrjoltcola
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>>Can I set the same security level on two interfaces in PIX, ASA and FWSM?

To clearly answer the first question, the Yes, you can.
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