Suppose external Router R1 has interface a connected with interface b of the site Router R2. And Router R1 using IP address 126.96.36.199/8 for a. Router R2 has 4 subnets 188.8.131.52/10, 184.108.40.206/10, 220.127.116.11/10, 18.104.22.168/10. My first question is router R1 with interface a and router R2 interface b has same ip address 22.214.171.124/8 or interface a using 126.96.36.199/8 and interface b using 188.8.131.52/10?
My second question is router R2's interface c has ip address 184.108.40.206/10?or any of the IP address of the block 220.127.116.11/10 for example 18.104.22.168/10?
My question is switch port interface N and host interface M could share same Mac address or switch has 3 different Mac address for it's interface N, P, Q?