Bidirectional remote connections among virtual ICT laboratories ranging over multiple network segments

ABSTRACT

Since Covid-19 has been prevalent over the world, it has become important for us to observe the following three countermeasures: Actually, these countermeasures have made it impossible to put various kinds of scientific experiments into practice especially in Japanese senior high schools, because scientific experiments necessarily require many students to gather in the inside of one laboratory and to keep academic conversations with each other. In this talk, we introduce a system of constructing virtual ICT laboratories which enables each student participating in a certain ICT experiment to deploy each network application such as a web browser or an e-mailer and to observe the others' ICT settings simultaneously. This system can be realized by the simultaneous combined use of Zoom and Cisco Packet Tracer. Assuming that this system is applied to two network students which are geographically located far from each other, we can classify this system into the following Finally, we should be careful of the fact that it is one thing to realize Case 1 and quite another to realize Case 2. In other words, While, in the network circumstances following Case 1, two students have only to apply wireless LAN routers for bidirectionally connecting their own PCs to each other, in the network circumstances following Case 2, they have to employ some other network application such as NAT traversal. © 2022 ACM.