FWSM - Statics between same security interfaces necessary?

Answered Question
Jan 14th, 2009
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I will have to implement a change which involves switching a single mode FWSM to multi mode.

Currently i have everything configured based on NAT0/NAT exemption which is going to be converted into static statements when doing the mode multi switch.

The only thing i am currently not sure about is if i need a static for same security level interfaces. Yes i know you only do statics from high to low interfaces but i just wanted to make sure that i don't have to prepare 4 pages of static rules before initiating the change.

Same security interfaces - static necessary? Please say NO. :)

Thanks for reading


Correct Answer by Jon Marshall about 8 years 3 months ago


"Please say NO. :)"

Okay then, no you don't need statics :-). See attached link for confirmation -



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Overall Rating: 5 (1 ratings)
Roble Mumin Thu, 01/15/2009 - 06:14
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Hi Jon,

that was exactly what i was looking for. Thanks for pointing that out.



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