Thanks for writing us.
As far as I'm aware, we don't have any Chinese speaking users or pros that can help in the community here. If you're comfortable writing in English, I'd be happy to assist.
If you need Chinese language support, please open a support case.
You can reach our Chinese language support line at 400 120 4955, or +1 (206) 521-3077.
With regards to your issue, I'd need to know a little more about your issue to help. I believe you said that you have 3 M200s. All of the M200s would have different IP addresses, and likely be on different subnets. They won't be able to share the same IP address.
WatchGuard Customer Support