Perhaps I am not understanding some parts of your post. Your question 1 is titled as a question but it reads more like a statement. Is it a question? Or is it a statement of how things work as shown in the posted section of configuration?
As I read the original post, access list 100 will permit RDP, and only RDP, from subnet 68 to subnet 67. It will not allow any other traffic to subnet 67, and in effect will not permit any traffic originated from subnet 67.
Perhaps we need some clarification about what you are attempting to achieve and about what is working or not working. As I read your note in the post I think I understand that you want to limit access from subnet 67. And the configured access list 100 would seem to do that.
Access list 101 as written would allow subnet 67 to originate RDP but would not allow responses to RDP originated from subnet 68. So you should modify access list 101 - if you want to use it. As I read your note I am not sure that you do want to use access list 101.
If my response does not satisfy your question then perhaps you can supply some clarification about what you are trying to achieve.
The explanation for this is part of my previous post:
Access list 101 as written would allow subnet 67 to originate RDP but would not allow responses to RDP originated from subnet 68. So you should modify access list 101
The problem is that when you use access list 101 (as written in your post) it does not permit responses from 18.104.22.168 for RDP originated from 22.214.171.124 and therefore RDP from 126.96.36.199 becomes broken. For RDP to work there must be a permit statement in the access list permitting responses from 188.8.131.52 for RDP originated from 184.108.40.206. Note that the post from Narayan suggests this and gives you the syntax for the command.
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