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New Member

PIX & IP's required

what is the minmum number of public ip address required to allow inside - outside internet browsing through a Pix firewall. (not using DHCP from ISP)

(1) for outside interface

&

(1) for PAT address

The way I see it is (2) static public I.P address.

Please verify ..

2 REPLIES
Bronze

Re: PIX & IP's required

At least two, you are correct. PAT is limited to basic web functions, browsing, ftp, mail, etc but you may have problems with streaming audio/video for example. If you can afford a small pool of addresses and PAT the overload, that’s best.

New Member

Re: PIX & IP's required

The more recent versions of PIX IOS require only one IP address. The syntax is:

global [(if_name)] nat_id interface

PAT, then, is processed thru the interface IP address.

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