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1 As showing the following figure, there are five mobile nods (A, B, C, D, and H), three access points (E, F, and G), and two routers (R1 and R2). The Ethernet cables are used between E, R1, R2 and G E and Fare connected through WiFi. According to the frame structures of IEEE 802.3 and IEEE 802.11, (a) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From Ds", when the mobile node D sends a packet to the mobile node A?(10) (b) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From DS", when the mobile node C sends a packet to the mobile node A?(20) The answers should contain the packet from C to F, from F to E, and from E to A. (c) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From DS", when the mobile node C sends a packet to the mobile node H?(30) The answers should contain the packet from C to F, from F to E, E to R1, R1 to R2, R2 to Gand from G to H. IBSS 4 EtharNet Ra.MAC G.MAC Router R3 Access Point (G) EtherNet R1 EtherNet E.MAC Mobile Node a IBSS3 Access Point (E) IBSS2 Access Point (F) obile Node ( Mobile Node (B) Mobile Node (C) IBSS1 Mobile Node (D) 1 As showing the following figure, there are five mobile nods (A, B, C, D, and H), three access points (E, F, and G), and two routers (R1 and R2). The Ethernet cables are used between E, R1, R2 and G E and Fare connected through WiFi. According to the frame structures of IEEE 802.3 and IEEE 802.11, (a) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From Ds", when the mobile node D sends a packet to the mobile node A?(10) (b) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From DS", when the mobile node C sends a packet to the mobile node A?(20) The answers should contain the packet from C to F, from F to E, and from E to A. (c) What device's MAC address should be in the address fields, and what value should be set in the bit of "To DS" and the bit of "From DS", when the mobile node C sends a packet to the mobile node H?(30) The answers should contain the packet from C to F, from F to E, E to R1, R1 to R2, R2 to Gand from G to H. IBSS 4 EtharNet Ra.MAC G.MAC Router R3 Access Point (G) EtherNet R1 EtherNet E.MAC Mobile Node a IBSS3 Access Point (E) IBSS2 Access Point (F) obile Node ( Mobile Node (B) Mobile Node (C) IBSS1 Mobile Node (D)