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desktop DNS server MAC: AA-2F-2F-2F-2F-2F IP: 3.3.3.3 MAC: CC-2F-2F-2F-2F-2F S1 3 i2 IP: 4.4.4.4 MAC: DD-2F-2F-2F-2F-2F DNS port: 53 R5 12 DNS port: 1220 HTTP

desktop DNS server MAC: AA-2F-2F-2F-2F-2F IP: 3.3.3.3 MAC: CC-2F-2F-2F-2F-2F S1 3 i2 IP: 4.4.4.4 MAC: DD-2F-2F-2F-2F-2F DNS port: 53 R5 12 DNS port: 1220 HTTP port: 1530 R2 i1 1IP: 51.51.5151 il MAC: 5a2F2F2F2F2F i1 il MAC: 1A-2F2F2F2F2F 2 IP:12.12.12.12 i2 MAC: 18-2F-2F-2F-2F-2F i2 IP:52.52.52.52 i2 MAC: 5B-2F-2F-2F-2F-2F R1 1IP: 21.21.21.21 il MAC 2a2F2F2F2F2F i2 IP 22.22.22.22 i2 MAC: 28-2F-2F-2F-2F-2F 1IP: 31.31.3131 il MAC: 3a2F2F2F2F2F i2 IP:32.32.32.32 i2 MAC: 3B-2F-2F-2F-2F-2F R3 i1 i2 R4 S2 1IP: 41.41.4141 il MAC: 4A-2F2F-2F2F-2F 2 IP:42.42.42.42 web server i1 i2 IP: 2.2.2.2 MAC: BB-2F-2F-2F-2F-2F HTTP port:80 Q3. Frame content Consider the case where the laptop sends a request to the DNS server. Fill-in the frame content in the following cases. a. when sent by the origin source (the laptop) dst. IP dst-port dst. MAC Message Content src. IP src-Port src. MAC a. when sent by the router R2 dst. IP src-Port dst-port dst. MAC Message Content src. IP src. MAC a when sent by the router R5 src. IP src-Port dst-port dst. MAC Message Content dst. IP src. MAC

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