1. Explain how two Skype users behind NAT routers can communicate with each ther.
2.a. Consider the network topology in Figure 1. DVMRP multicast routing algorithm is implemented. For a multicast group where node B is the source and nodes E, G, H are receiving nodes, please draw the multicast forwarding tree for this multicast group. (20 marks)
b. Still consider the network topology in figure 1. Now a user attached to Router F wishes to join the group and receive the messages sent by node B. Explain what procedures should be followed so this receiver can receive the messages. (20 marks)
Danna kastiya uththare kiya dendoooooooooooo
Loku udawwak
2.a. Consider the network topology in Figure 1. DVMRP multicast routing algorithm is implemented. For a multicast group where node B is the source and nodes E, G, H are receiving nodes, please draw the multicast forwarding tree for this multicast group. (20 marks)
b. Still consider the network topology in figure 1. Now a user attached to Router F wishes to join the group and receive the messages sent by node B. Explain what procedures should be followed so this receiver can receive the messages. (20 marks)
Danna kastiya uththare kiya dendoooooooooooo
Loku udawwak
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