We are planning to spin up more services to Office 365 in the near future. There have been several questions our O365 team has concerning the outbound browsing FW.
We use a single outbound browsing NAT and the concern is the number of ports used on that single address could be exhausted. Will this be a problem for O365? Microsoft recommended to have multiple outbound NATs to mitigate this. Are multiple outbound NATs possible? I thought I read somewhere that if the Destinations are different then you would get sets of ports for each destination IPs.
Is there a way to monitor or get an idea of current number of ports being used by our single overloaded NAT?
Is there a way to get any type of reporting around Office 365 traffic outbound?
Any suggestions, links, articles are welcomed.
Thanks in Advance,