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pix having public ip+private ip

diptanshusingh
Level 1
Level 1

hi

i have a question,i have a pix 501.Now on the inside interface can we have both public ip+private ip's.

internet<-->router<-->pix 501<-->(public ip+private ip)

Pleas tell me how it can be done if possible.

3 Replies 3

spremkumar
Level 9
Level 9

hi

Its not possible to have both Public/private behind the Inside interface as the PIX doesnt support the secondary addressing concept.

If you have another port (which is not the case with 501) u can assign the public ip to that other free port.

regds

philipmbogo
Level 1
Level 1

Option 1:

You will need a layer 3 device(could be a switch) before the pix to achieve this. However this will introduce an additional hop.

Option 2 (recommended): use private ips internally and for the host requiring public ips use static NAT on the pix.

jackko
Level 7
Level 7

just wondering what the ultimate goal here. perhaps we can provide a workaround.

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