You did not explain what you are trying to achieve and what is the problem you are experiencing.
The problem with your ACL is that the number 10 refers to a standard ACL. However, you want to specify protocol, source, destination and ports - you need the extended ACL for that which are numbered from 100 to 199 and from 2000 do 2699.
As for the obviously DNS-related configuration: the command "ip forward-protocol" is used for UDP helper that forwards UDP broadcasts of a selected protocol to a predefined address. Is that what you want? If you wanted your router to serve as DNS server for other clients then this is not how it is configured. Refer to this document for more information how to run a DNS server on a router:
I am sorry but you have confused me here. Your original post suggested that you are either trying to set the IP of the DNS server on a router, or you want the router itself to be a DNS server. Now you have brought in the X.25 and you are explaining me that you basically need to ping the NSAP address of the remote router.
What is what you really are trying to accomplish? Are you trying to solve a name-to-address resolution problem, or a X.25/IP network connectivity?
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...