Turn on the VLAN and all the errors go away...
root@OpenWrt:/etc/config# tcpdump -n -v -x -e -i eth0
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size
65535 bytes
02:28:09.258040 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 78: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57708, offset 0, flags [DF], proto TCP (6), length 60)
192.168.1.40.57784 > 192.168.1.85.80: Flags [S], cksum 0xacee
(correct), seq 3716480608, win 14600, options [mss 1460,sackOK,TS val
21045004 ecr 0,nop,wscale 7], length 0
0x0000: 0001 0800 4500 003c e16c 4000 4006 d581
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd84 fe60
0x0020: 0000 0000 a002 3908 acee 0000 0204 05b4
0x0030: 0402 080a 0141 1f0c 0000 0000 0103 0307
02:28:09.258580 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 78: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
192.168.1.85.80 > 192.168.1.40.57784: Flags [S.], cksum 0x6496
(correct), seq 2796728135, ack 3716480609, win 14480, options [mss
1460,sackOK,TS val 4294963913 ecr 21045004,nop,wscale 2], length 0
0x0000: 0001 0800 4500 003c 0000 4000 4006 b6ee
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 af47
0x0020: dd84 fe61 a012 3890 6496 0000 0204 05b4
0x0030: 0402 080a ffff f2c9 0141 1f0c 0103 0302
02:28:09.258820 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57709, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.40.57784 > 192.168.1.85.80: Flags [.], cksum 0xcb7a
(correct), ack 1, win 115, options [nop,nop,TS val 21045004 ecr
4294963913], length 0
0x0000: 0001 0800 4500 0034 e16d 4000 4006 d588
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd84 fe61
0x0020: a6b2 af48 8010 0073 cb7a 0000 0101 080a
0x0030: 0141 1f0c ffff f2c9
02:28:09.259200 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 511: vlan 1, p 0, ethertype IPv4, (tos 0x0,
ttl 64, id 57710, offset 0, flags [DF], proto TCP (6), length 493)
192.168.1.40.57784 > 192.168.1.85.80: Flags [P.], cksum 0x9344
(correct), seq 1:442, ack 1, win 115, options [nop,nop,TS val 21045004
ecr 4294963913], length 441
0x0000: 0001 0800 4500 01ed e16e 4000 4006 d3ce
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd84 fe61
0x0020: a6b2 af48 8018 0073 9344 0000 0101 080a
0x0030: 0141 1f0c ffff f2c9 4745 5420 2f63 6769
0x0040: 2d62 696e 2f6c 7563 6920 4854 5450 2f31
0x0050: 2e31 0d0a 486f 7374 3a20 3139 322e 3136
0x0060: 382e 312e 3835 0d0a 436f 6e6e 6563 7469
0x0070: 6f6e 3a20 6b65 6570 2d61 6c69 7665 0d0a
0x0080: 4361 6368 652d 436f 6e74 726f 6c3a 206d
0x0090: 6178 2d61 6765 3d30 0d0a 4163 6365 7074
0x00a0: 3a20 7465 7874 2f68 746d 6c2c 6170 706c
0x00b0: 6963 6174 696f 6e2f 7868 746d 6c2b 786d
0x00c0: 6c2c 6170 706c 6963 6174 696f 6e2f 786d
0x00d0: 6c3b 713d 302e 392c 2a2f 2a3b 713d 302e
0x00e0: 380d 0a55 7365 722d 4167 656e 743a 204d
0x00f0: 6f7a 696c 6c61 2f35 2e30 2028 5831 313b
0x0100: 204c 696e 7578 2078 3836 5f36 3429 2041
0x0110: 7070 6c65 5765 624b 6974 2f35 3337 2e33
0x0120: 3620 284b 4854 4d4c 2c20 6c69 6b65 2047
0x0130: 6563 6b6f 2920 4368 726f 6d65 2f32 392e
0x0140: 302e 3135 3437 2e37 3620 5361 6661 7269
0x0150: 2f35 3337 2e33 360d 0a52 6566 6572 6572
0x0160: 3a20 6874 7470 3a2f 2f31 3932 2e31 3638
0x0170: 2e31 2e38 352f 0d0a 4163 6365 7074 2d45
0x0180: 6e63 6f64 696e 673a 2067 7a69 702c 6465
0x0190: 666c 6174 652c 7364 6368 0d0a 4163 6365
0x01a0: 7074 2d4c 616e 6775 6167 653a 2065 6e2d
0x01b0: 5553 2c65 6e3b 713d 302e 380d 0a43 6f6f
0x01c0: 6b69 653a 2073 7973 6175 7468 3d38 6536
0x01d0: 6130 3935 6335 3963 6338 6461 3232 3235
0x01e0: 3035 3437 3335 3837 6165 3935 300d 0a0d
0x01f0: 0a
02:28:09.259520 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 23937, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.85.80 > 192.168.1.40.57784: Flags [.], cksum 0xbb04
(correct), ack 442, win 3888, options [nop,nop,TS val 4294963913 ecr
21045004], length 0
0x0000: 0001 0800 4500 0034 5d81 4000 4006 5975
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 af48
0x0020: dd85 001a 8010 0f30 bb04 0000 0101 080a
0x0030: ffff f2c9 0141 1f0c
02:28:09.547120 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 139: vlan 1, p 0, ethertype IPv4, (tos 0x0,
ttl 64, id 23938, offset 0, flags [DF], proto TCP (6), length 121)
192.168.1.85.80 > 192.168.1.40.57784: Flags [P.], cksum 0xaffe
(correct), seq 1:70, ack 442, win 3888, options [nop,nop,TS val
4294963941 ecr 21045004], length 69
0x0000: 0001 0800 4500 0079 5d82 4000 4006 592f
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 af48
0x0020: dd85 001a 8018 0f30 affe 0000 0101 080a
0x0030: ffff f2e5 0141 1f0c 4854 5450 2f31 2e31
0x0040: 2032 3030 204f 4b0d 0a43 6f6e 6e65 6374
0x0050: 696f 6e3a 204b 6565 702d 416c 6976 650d
0x0060: 0a54 7261 6e73 6665 722d 456e 636f 6469
0x0070: 6e67 3a20 6368 756e 6b65 640d 0a
02:28:09.547440 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57711, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.40.57784 > 192.168.1.85.80: Flags [.], cksum 0xc917
(correct), ack 70, win 115, options [nop,nop,TS val 21045077 ecr
4294963941], length 0
0x0000: 0001 0800 4500 0034 e16f 4000 4006 d586
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd85 001a
0x0020: a6b2 af8d 8010 0073 c917 0000 0101 080a
0x0030: 0141 1f55 ffff f2e5
02:28:09.547760 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 119: vlan 1, p 0, ethertype IPv4, (tos 0x0,
ttl 64, id 23939, offset 0, flags [DF], proto TCP (6), length 101)
192.168.1.85.80 > 192.168.1.40.57784: Flags [P.], cksum 0x2924
(correct), seq 70:119, ack 442, win 3888, options [nop,nop,TS val
4294963941 ecr 21045077], length 49
0x0000: 0001 0800 4500 0065 5d83 4000 4006 5942
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 af8d
0x0020: dd85 001a 8018 0f30 2924 0000 0101 080a
0x0030: ffff f2e5 0141 1f55 4b65 6570 2d41 6c69
0x0040: 7665 3a20 7469 6d65 6f75 743d 3230 0d0a
0x0050: 436f 6e74 656e 742d 5479 7065 3a20 7465
0x0060: 7874 2f68 746d 6c0d 0a
02:28:09.548020 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57712, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.40.57784 > 192.168.1.85.80: Flags [.], cksum 0xc8e6
(correct), ack 119, win 115, options [nop,nop,TS val 21045077 ecr
4294963941], length 0
0x0000: 0001 0800 4500 0034 e170 4000 4006 d585
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd85 001a
0x0020: a6b2 afbe 8010 0073 c8e6 0000 0101 080a
0x0030: 0141 1f55 ffff f2e5
02:28:09.548340 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 107: vlan 1, p 0, ethertype IPv4, (tos 0x0,
ttl 64, id 23940, offset 0, flags [DF], proto TCP (6), length 89)
192.168.1.85.80 > 192.168.1.40.57784: Flags [P.], cksum 0x9c3c
(correct), seq 119:156, ack 442, win 3888, options [nop,nop,TS val
4294963941 ecr 21045077], length 37
0x0000: 0001 0800 4500 0059 5d84 4000 4006 594d
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 afbe
0x0020: dd85 001a 8018 0f30 9c3c 0000 0101 080a
0x0030: ffff f2e5 0141 1f55 4361 6368 652d 436f
0x0040: 6e74 726f 6c3a 206e 6f2d 6361 6368 650d
0x0050: 0a45 7870 6972 6573 3a20 300d 0a
02:28:09.548600 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57713, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.40.57784 > 192.168.1.85.80: Flags [.], cksum 0xc8c1
(correct), ack 156, win 115, options [nop,nop,TS val 21045077 ecr
4294963941], length 0
0x0000: 0001 0800 4500 0034 e171 4000 4006 d584
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd85 001a
0x0020: a6b2 afe3 8010 0073 c8c1 0000 0101 080a
0x0030: 0141 1f55 ffff f2e5
02:28:09.548940 00:0a:52:00:00:02 > 70:71:bc:b8:9b:ee, ethertype
802.1Q (0x8100), length 72: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 23941, offset 0, flags [DF], proto TCP (6), length 54)
192.168.1.85.80 > 192.168.1.40.57784: Flags [P.], cksum 0xacf0
(correct), seq 156:158, ack 442, win 3888, options [nop,nop,TS val
4294963941 ecr 21045077], length 2
0x0000: 0001 0800 4500 0036 5d85 4000 4006 596f
0x0010: c0a8 0155 c0a8 0128 0050 e1b8 a6b2 afe3
0x0020: dd85 001a 8018 0f30 acf0 0000 0101 080a
0x0030: ffff f2e5 0141 1f55 0d0a
02:28:09.549180 70:71:bc:b8:9b:ee > 00:0a:52:00:00:02, ethertype
802.1Q (0x8100), length 70: vlan 1, p 0, ethertype IPv4, (tos 0x0, ttl
64, id 57714, offset 0, flags [DF], proto TCP (6), length 52)
192.168.1.40.57784 > 192.168.1.85.80: Flags [.], cksum 0xc8bf
(correct), ack 158, win 115, options [nop,nop,TS val 21045077 ecr
4294963941], length 0
0x0000: 0001 0800 4500 0034 e172 4000 4006 d583
0x0010: c0a8 0128 c0a8 0155 e1b8 0050 dd85 001a
0x0020: a6b2 afe5 8010 0073 c8bf 0000 0101 080a
0x0030: 0141 1f55 ffff f2e5
--
Jon Smirl
jonsm...@gmail.com
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