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Multiple public IP's to 1 internal IP

Hi,

We have an ASA 5520 running in front of our web farm. We now have 5 public IP's that need to be forwarded to 1 internal IP, on the same port.

Our network guys tell us this is not possible !? Any ideas ??

Txs,

Stefan

2 REPLIES
Silver

Re: Multiple public IP's to 1 internal IP

Hi Stefan,

Your requirement is quite unusual. But as your network engineers suggest there cannot be port forwarding done to the same server. But what we can do is this

global (inside) 1 x.x.x.x

that x.x.x.x is your internal ip.

and nat (outside) 1 y.y.y.y- y.y.y.z netmask 255.255.255.0

thats the range of your outside IP. Also remember to put the right access-list on your outside interface to allow access.

-Hoogen

Re: Multiple public IP's to 1 internal IP

Hi Hoogen,

Is it that unusual ? What if you host multiple websites on 1 physical server = 1 IP. And you have muliple public IP addresse pointing from the outside to that server e.g. consolidation but and you don't wanna change DNS entries.

I have no problem doing this on other products

Bit strange that the ASA can't do it.

Regards,

Stefan

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