This is our scenario:
We have an Cisco ASA 5512x and we have 2 different Internet connections from different ISPs connected with it. ISP A is being used for the users browsing traffic(normal internet) while ISP B is used for site-to-site tunnels and also for the static public IPs to access the servers from the outside.
So our configuration on the Cisco ASA is that the default route (0.0.0.0) is from ISP A with metric 1 while another default route with metric 2 is for ISP B.
Now the issue is that we have a web server which is reachable from the outside via an IP through ISP B(note:static NAT is configured to map the internal IP of webserver and the static public IP of ISP B), but apparently when this server responds for requests, these are going out through ISP A since there is the default route.
This is creating a lot of problems for us.. Is there a way to configure the Cisco ASA to reply from ISP B ? while ofcourse the users general traffic still pass through ISP A.