Dual ISP for Inbound NAT services

[J_Vansen_S]

Hi All,

I have 2 ISP terminating on the ASA5585 version 9.4

Incoming NAT-Traffic

I need to have both the Email and Lync servers NATted to public IP and both accessible at the same time.

Is that possible in my setup?

Outgoing Traffic

Internet traffic default route will go to ISP 1

How do i achieve this?

Am i suppose to insert another default route to ISP 2 with administrative distance 100

Appreciate any advise

[joseoroz]

Hello J,

If you need to receive traffic on both ISP's that will work meanwhile you have static translation. The inactive unit will receive the traffic and pass it to server and the same flow will be used to send the traffic out to the same path. 

That will work for VPN as well. The limitation on the firewall is that only supports a single default gateway but on this case the NAT will allow the traffic and make it symmetric as the same path will use all along. 

Kind regards,

Jose Orozco. 

[Ajay Saini]

I posted in a similar discussion, please check if that is similar to what you are looking for.

https://supportforums.cisco.com/discussion/13212126/e-mail-server-asa 

Let me know if there are any questions.

-

AJ