Question : Exchange Standby Continuous Replication

I have a question about Exchange 2007's Standby Continuous Replication.

How does the Outlook client know to use the SCR target server instead of the source when the source goes down? I know that there is a manual failover process to bring the database online in the target, but I don't understand how the client would be aware of the change.

Answer : Exchange Standby Continuous Replication

It sounds like you want to allow a static mapping through for outside access.  You need to create a staic mapping:

static (inside,outside) <EXTERNAL IP> <INTERNALIP> netmask 255.255.255.255 0 0

Then add an entry to your current ACL tied to your outside interface:

access-list outside permit tcp (or UDP or IP) any host <EXTERNAL IP> eq <PORT NEEDED FOR ACCESS>