AR router can configure NAT static and NAT port to achieve one to one mapping.
For example: NAT server TCP global 1.1.1.2 21 inside 10.3.0.30 21 server.
The AR router can be configured with static NAT or the NAT server to implement one-to-one mapping, for example, nat server protocol tcp global 1.1.1.2 21 inside 10.3.0.30 21.
BMU's ability to synchronize multiple departments at the same department level explanatioin is as follows:
UC2.X solution, BMU sync AD, or synchronize all sectors under the entire domain name, or synchrionize some ou sub sector in the root domain, but BMU can not synchronize multiple sub sectors of a department.
EC3.0 (UC3.0) solution can be configured to synchronize a large sector and some sub sector no need to be synchronized to achieve synchronization of multiple sub sectors.
If you have more questions, you can seek help from following ways:
