topic Re: pix having public ip+private ip in Network Security

pix having public ip+private ip

diptanshusingh — Fri, 21 Feb 2020 08:38:28 GMT

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.

spremkumar — Fri, 13 Jan 2006 07:39:13 GMT

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 — Fri, 13 Jan 2006 11:38:52 GMT

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 — Sat, 14 Jan 2006 16:02:31 GMT

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