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is it possible to use one public ip address to access multiple internal servers?

We have just recently installed a Cisco ASA 5510 firewall and have got the configuration all up and running, however due to current project we are running, we have allocated a single public ip address for a third party company to tunnel in on that address to access our SQL server which is configured to be working fine, however due to our lack of public ip address,o we would also want the third party company to gain access to our LDAP server, Is it possible to for one public ip address to tunnel into two separate servers?

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Re: is it possible to use one public ip address to access multip

Hi,

You can share a single public IP with several internal IPs (if they use different TCP/UDP ports).

i.e

static (in,out) tcp 200.1.1.1 80 10.1.1.1 80

static (in,out) tcp 200.1.1.1 25 10.1.1.2 25

static (in,out) tcp 200.1.1.1 21 10.1.1.3 21

In the example above you have three internal servers (web, email and ftp) and they all share the same public IP.

Federico.

Cisco Employee

Re: is it possible to use one public ip address to access multip

Hey Federico,

Yes this is possible and this technique is called Port forwarding.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a00804708b4.shtml

Cheers

Ankur Bajaj

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