详细使用可以看这个
https://eco.dameng.com/document/dm/zh-cn/pm/resource-limit.html

通过创建用户的方式，限制用户可以使用哪个ip登录和不适用哪个ip登录。

create user DMTEST identified by "DMTEST@123"
allow_ip "192.168.49.10","192.168.49.12"
not_allow_ip "192.168.49.11","192.168.49.13";

grant "PUBLIC","SOI" to DMTEST;