For some remote office locations of multiple clients, at the same time access to the mail system, the export IP is the same, then through the TMG session log can be seen TMG think this IP traffic is too high, so blocking the partial connection, causing problems. The rationale behind this is that because TMG has a flood protection feature, this feature prevents attacks from a single source IP user from initiating a large number of connection requests. This causes some problems for OWA and Outlook anywhere clients to not connect properly to the messaging system.
When this happens, we need to get the real public IP address that users use when they surf the internet, and then add the exception to TMG.
Using Whatismyip, this website can be used to automatically detect the real use of the current client's public IP address.
What is My ip-the IP address experts Since 1999-whatismyip.com?
https://www.whatismyip.com/
After visiting the site, the results are as follows.
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This article from "Zeng Hung Xin Technical column" blog, declined to reprint!
Exchange Tools 06-what is my IP