Cloud-based software-as-a-service (SaaS)

Question

Hello
Does anyone know where can I find documentation on how to configure SaaS with WAAS?
I'm looking to setup salesforce application on the WAAS for WAN optimization out to the branch office. All I can find is whitepapers that talks about what it does. I need detail steps on how to properly configure it or examples showing how to. 
Do you just build an SSL service connection to *.salesforce.com?
How will the traffic from the branch office be able to route to salesforce.com when they have their own local ISP?
Do you add static routes for all of the possible IP addresses for the application out of your Data Center? If so, this makes it very difficult to manage since the cloud service can change their IP address at any given time.
I would appreciate for someone to give me a simple example to follow. :-)
Thanks in advance!
John

Answer 1

Hello John,
I am not an expert on this but still PLEASE read the following on detailed, you will find most of your questions answered:
Simplified Deployment Model for Cloud-Based Services
Cloud-based  software-as-a-service (SaaS) providers such as WebEx.com and  Salesforce.com primarily use HTTPS to securely deliver services to their  clients. Using Cisco WAAS SSL Application Optimizer, Cisco WAAS can  optimize delivery of these services to the remote branch-office users  who connect to these services through a backhaul connection to the data  center.
However,  the solution poses some unique challenges related to simplifying the  implementation and deployment model. Typically, SaaS providers have  multiple SSL server farms with multiple hosts spanning several data  centers. When a client initiates an SSL connection request to a server  located in the SaaS server farm, the Cisco WAAS SSL Application  Optimizer needs to map the destination IP address in the incoming SSL  request to an SSL accelerated service to present the right SSL  certificate to the client to perform an SSL handshake.
For  SSL services that are hosted in the enterprise data center, the IT  administrator knows and controls the SSL server IP address and can  provide it to the data center Cisco WAAS. But for an SSL service hosted  at a third-party SaaS provider cloud, the SSL server IP address is not  controlled by the IT administrator. Also, there may be not just one but  multiple server IP addresses even for a single SaaS service, and these  may be subject to change.
To  simplify the deployment model for SaaS optimization, Cisco WAAS  provides support for domain names in the SSL accelerated service  configuration. This model can be applied to any cloud-based SaaS  applications such as Salesforce.com and WebEx.com. For example, when an  SSL accelerated service is configured in the data center Cisco WAE with a  wildcard domain name (for instance, *.webex.com) option, the Cisco WAAS  SSL Application Optimizer performs a reverse Domain Name System (DNS)  lookup on the destination server IP upon receiving an SSL connection  request from the client, and if the IP address resolves to a host that  matches the configured wildcard domain name (for instance, *.webex.com),  then the appropriate SSL accelerated service policy is applied to this  connection (Figure 3).
Cisco Wide Area Application Services SSL Application Optimizer Deployment Guide  (Simplified Deployment for SaaS Optimization)
http://www.cisco.com/en/US/prod/collateral/contnetw/ps5680/ps6870/deployment_guide_c07-541981.html
This topic is pretty complex for a support forum, I suggest to open a TAC case or contact your  Cisco partner or PDI support.
hope this helps!
Felix