Jetzt läuft tcpdump. Anscheinend funktioniert der Netzwerkzugriff grundsätzlich:
pi@raspberrypi:~ $ sudo tcpdump -c 20 -vvveni wlan0 host 192.168.178.46 and port 5900
tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture size 262144 bytes
10:15:24.003789 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 542: (tos 0x0, ttl 64, id 33288, offset 0, flags [DF], proto UDP (17), length 528)
192.168.178.46.40849 > 192.168.178.44.5900: [udp sum ok] UDP, length 500
10:15:24.068067 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 74: (tos 0x0, ttl 64, id 44972, offset 0, flags [DF], proto TCP (6), length 60)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [S], cksum 0xc7cd (correct), seq 2982003748, win 65535, options [mss 1460,sackOK,TS val 3059397594 ecr 0,nop,wscale 9], length 0
10:15:24.068181 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 74: (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [S.], cksum 0x73d7 (correct), seq 3937537484, ack 2982003749, win 65160, options [mss 1460,sackOK,TS val 1950738585 ecr 3059397594,nop,wscale 7], length 0
10:15:24.087192 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44973, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0xa084 (correct), seq 1, ack 1, win 128, options [nop,nop,TS val 3059397634 ecr 1950738585], length 0
10:15:24.139946 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 78: (tos 0x0, ttl 64, id 60421, offset 0, flags [DF], proto TCP (6), length 64)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [P.], cksum 0x44ab (correct), seq 1:13, ack 1, win 510, options [nop,nop,TS val 1950738657 ecr 3059397634], length 12
10:15:24.152825 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44974, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0x9ff1 (correct), seq 1, ack 13, win 128, options [nop,nop,TS val 3059397697 ecr 1950738657], length 0
10:15:24.155387 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 127: (tos 0x0, ttl 64, id 44975, offset 0, flags [DF], proto TCP (6), length 113)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [P.], cksum 0x3c70 (correct), seq 1:62, ack 13, win 128, options [nop,nop,TS val 3059397698 ecr 1950738657], length 61
10:15:24.155413 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 60422, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [.], cksum 0x9e26 (correct), seq 13, ack 62, win 510, options [nop,nop,TS val 1950738672 ecr 3059397698], length 0
10:15:24.161817 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 406: (tos 0x0, ttl 64, id 60423, offset 0, flags [DF], proto TCP (6), length 392)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [P.], cksum 0x493a (correct), seq 13:353, ack 62, win 510, options [nop,nop,TS val 1950738679 ecr 3059397698], length 340
10:15:24.195460 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44976, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0x9e19 (correct), seq 62, ack 353, win 131, options [nop,nop,TS val 3059397743 ecr 1950738679], length 0
10:15:24.205263 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 630: (tos 0x0, ttl 64, id 44977, offset 0, flags [DF], proto TCP (6), length 616)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [P.], cksum 0x8e22 (correct), seq 62:626, ack 353, win 131, options [nop,nop,TS val 3059397745 ecr 1950738679], length 564
10:15:24.205324 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 60424, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [.], cksum 0x9a41 (correct), seq 353, ack 626, win 506, options [nop,nop,TS val 1950738722 ecr 3059397745], length 0
10:15:24.212357 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 328: (tos 0x0, ttl 64, id 60425, offset 0, flags [DF], proto TCP (6), length 314)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [P.], cksum 0xcc0b (correct), seq 353:615, ack 626, win 506, options [nop,nop,TS val 1950738729 ecr 3059397745], length 262
10:15:24.248569 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 128: (tos 0x0, ttl 64, id 60426, offset 0, flags [DF], proto TCP (6), length 114)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [P.], cksum 0x81a2 (correct), seq 615:677, ack 626, win 506, options [nop,nop,TS val 1950738765 ecr 3059397745], length 62
10:15:24.248594 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44978, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0x9a94 (correct), seq 626, ack 615, win 133, options [nop,nop,TS val 3059397766 ecr 1950738729], length 0
10:15:24.249846 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 128: (tos 0x0, ttl 64, id 44979, offset 0, flags [DF], proto TCP (6), length 114)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [P.], cksum 0xe435 (correct), seq 626:688, ack 615, win 133, options [nop,nop,TS val 3059397775 ecr 1950738729], length 62
10:15:24.249903 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 60427, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [.], cksum 0x9874 (correct), seq 677, ack 688, win 506, options [nop,nop,TS val 1950738767 ecr 3059397775], length 0
10:15:24.286539 e4:5f:01:5d:06:5d > 9c:5a:81:ac:a8:00, ethertype IPv4 (0x0800), length 97: (tos 0x0, ttl 64, id 60428, offset 0, flags [DF], proto TCP (6), length 83)
192.168.178.44.5900 > 192.168.178.46.41824: Flags [P.], cksum 0x4f29 (correct), seq 677:708, ack 688, win 506, options [nop,nop,TS val 1950738803 ecr 3059397775], length 31
10:15:24.325218 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44980, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0x999e (correct), seq 688, ack 677, win 133, options [nop,nop,TS val 3059397852 ecr 1950738765], length 0
10:15:24.330219 9c:5a:81:ac:a8:00 > e4:5f:01:5d:06:5d, ethertype IPv4 (0x0800), length 66: (tos 0x0, ttl 64, id 44981, offset 0, flags [DF], proto TCP (6), length 52)
192.168.178.46.41824 > 192.168.178.44.5900: Flags [.], cksum 0x993f (correct), seq 688, ack 708, win 133, options [nop,nop,TS val 3059397878 ecr 1950738803], length 0
20 packets captured
20 packets received by filter
0 packets dropped by kernel
pi@raspberrypi:~ $