>[оверквотинг удален]
> Странно, что арп реквесты через re0, сделайте еще раз сюда
> ifconfig re0
> ifconfig re1
> route get 212.26.14.210
> arp -an 212.26.14.210
> с клиента ping -c 1 8.8.8.8
> в это время на сервере
> tcpdump -nvi re0 host 212.26.14.210
> tcpdump -nvi re1 host 212.26.14.210
> и все сюда. ifconfig re0
re0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether ЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧ
inet 30.254.27.62 netmask 0xfffffffc broadcast 30.255.27.63
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
ifconfig re1
re1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 90:94:e4:81:ab:75
inet 172.16.0.1 netmask 0xffffff00 broadcast 172.16.0.255
inet 212.26.14.209 netmask 0xfffffff8 broadcast 212.26.14.215
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
# route get 212.26.14.210
route to: 212.26.14.210
destination: 212.26.14.208
mask: 255.255.255.248
interface: re1
tcpdump -nvi re0 host 212.26.14.210
tcpdump: listening on re0, link-type EN10MB (Ethernet), capture size 96 bytes
14:22:58.631009 IP (tos 0x0, ttl 127, id 1000, offset 0, flags [none], proto UDP (17), length 62, bad cksum 0 (->3fcb)!)
212.26.14.210.62538 > 8.8.8.8.53: 1359+ A? q64.queue.vk.com. (34)
14:22:59.174050 IP (tos 0x0, ttl 127, id 1004, offset 0, flags [none], proto UDP (17), length 69, bad cksum 0 (->3fc0)!)
212.26.14.210.51548 > 8.8.8.8.53: 4065+ A? 6to4.ipv6.microsoft.com. (41)
14:22:59.180058 IP (tos 0x0, ttl 127, id 1005, offset 0, flags [none], proto UDP (17), length 71, bad cksum 0 (->3fbd)!)
212.26.14.210.56408 > 8.8.8.8.53: 39300+ A? teredo.ipv6.microsoft.com. (43)
14:22:59.631039 IP (tos 0x0, ttl 127, id 1009, offset 0, flags [none], proto UDP (17), length 62, bad cksum 0 (->3fc2)!)
212.26.14.210.62538 > 8.8.8.8.53: 1359+ A? q64.queue.vk.com. (34)
14:22:59.632051 IP (tos 0x0, ttl 127, id 1010, offset 0, flags [none], proto UDP (17), length 62, bad cksum 0 (->3fc1)!)
212.26.14.210.56711 > 8.8.8.8.53: 9470+ A? q64.queue.vk.com. (34)
14:23:01.180152 IP (tos 0x0, ttl 127, id 1019, offset 0, flags [none], proto UDP (17), length 71, bad cksum 0 (->3faf)!)
212.26.14.210.56408 > 8.8.8.8.53: 39300+ A? teredo.ipv6.microsoft.com. (43)
14:23:01.204644 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 212.26.14.2 10 tell 212.26.14.209, length 46
14:23:01.631160 IP (tos 0x0, ttl 127, id 1021, offset 0, flags [none], proto UDP (17), length 62, bad cksum 0 (->3fb6)!)
212.26.14.210.62538 > 8.8.8.8.53: 1359+ A? q64.queue.vk.com. (34)
14:23:01.932194 IP (tos 0x0, ttl 127, id 1022, offset 0, flags [none], proto UDP (17), length 66, bad cksum 0 (->3fb1)!)
212.26.14.210.60073 > 8.8.8.8.53: 11665+ A? ping3.teamviewer.com. (38)
14:23:02.522276 IP (tos 0x0, ttl 127, id 1024, offset 0, flags [none], proto ICM P (1), length 60, bad cksum 0 (->3fc5)!)
212.26.14.210 > 8.8.8.8: ICMP echo request, id 4, seq 4939, length 40
14:23:02.572862 IP (tos 0x0, ttl 127, id 1025, offset 0, flags [none], proto UDP (17), length 61, bad cksum 0 (->3fb3)!)
212.26.14.210.57394 > 8.8.8.8.53: 36291+ A? mail.google.com. (33)
14:23:03.179506 IP (tos 0x0, ttl 127, id 1029, offset 0, flags [none], proto UDP (17), length 69, bad cksum 0 (->3fa7)!)
212.26.14.210.52237 > 8.8.8.8.53: 13341+ A? 6to4.ipv6.microsoft.com. (41)
14:23:03.572293 IP (tos 0x0, ttl 127, id 1030, offset 0, flags [none], proto UDP (17), length 61, bad cksum 0 (->3fae)!)
212.26.14.210.57394 > 8.8.8.8.53: 36291+ A? mail.google.com. (33)
billing# tcpdump -nvi re1 host 212.26.14.210
tcpdump: listening on re1, link-type EN10MB (Ethernet), capture size 96 bytes
14:23:22.341864 IP (tos 0x10, ttl 64, id 47714, offset 0, flags [DF], proto TCP (6), length 184, bad cksum 0 (->aff5)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 562355732, win 8326, options [nop,nop,TS val 1856557299 ecr 28127803], length 132
14:23:22.342504 IP (tos 0x0, ttl 128, id 1103, offset 0, flags [DF], proto TCP (6), length 52)
212.26.14.210.58566 > 212.26.14.209.22: Flags [.], cksum 0xbaa1 (correct), ack 132, win 16439, options [nop,nop,TS val 28127803 ecr 1856557299], length 0
14:23:22.378993 IP (tos 0x0, ttl 128, id 1104, offset 0, flags [none], proto UDP (17), length 62)
212.26.14.210.65354 > 8.8.8.8.53: 20137+ A? q64.queue.vk.com. (34)
14:23:22.521122 IP (tos 0x0, ttl 128, id 1105, offset 0, flags [none], proto ICMP (1), length 60)
212.26.14.210 > 8.8.8.8: ICMP echo request, id 4, seq 4963, length 40
14:23:22.833671 IP (tos 0x0, ttl 128, id 1106, offset 0, flags [none], proto UDP (17), length 61)
212.26.14.210.51131 > 8.8.8.8.53: 6495+ A? mail.google.com. (33)
14:23:23.084090 IP (tos 0x0, ttl 128, id 1107, offset 0, flags [none], proto ICMP (1), length 60)
212.26.14.210 > 212.26.14.209: ICMP echo request, id 4, seq 4964, length 40
14:23:23.084093 IP (tos 0x0, ttl 64, id 47715, offset 0, flags [none], proto ICMP (1), length 60, bad cksum 0 (->f085)!)
212.26.14.209 > 212.26.14.210: ICMP echo reply, id 4, seq 4964, length 40
14:23:23.186083 IP (tos 0x0, ttl 128, id 1108, offset 0, flags [none], proto UDP (17), length 69)
212.26.14.210.59264 > 8.8.8.8.53: 18415+ A? 6to4.ipv6.microsoft.com. (41)
14:23:23.341598 IP (tos 0x10, ttl 64, id 47717, offset 0, flags [DF], proto TCP (6), length 216, bad cksum 0 (->afd2)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 164
14:23:23.341613 IP (tos 0x10, ttl 64, id 47718, offset 0, flags [DF], proto TCP (6), length 248, bad cksum 0 (->afb1)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 196
14:23:23.341626 IP (tos 0x10, ttl 64, id 47719, offset 0, flags [DF], proto TCP (6), length 360, bad cksum 0 (->af40)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 308
14:23:23.341640 IP (tos 0x10, ttl 64, id 47720, offset 0, flags [DF], proto TCP (6), length 200, bad cksum 0 (->afdf)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 148
14:23:23.341654 IP (tos 0x10, ttl 64, id 47721, offset 0, flags [DF], proto TCP (6), length 440, bad cksum 0 (->aeee)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 388
14:23:23.341684 IP (tos 0x10, ttl 64, id 47722, offset 0, flags [DF], proto TCP (6), length 552, bad cksum 0 (->ae7d)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 500
14:23:23.341695 IP (tos 0x10, ttl 64, id 47723, offset 0, flags [DF], proto TCP (6), length 280, bad cksum 0 (->af8c)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856558299 ecr 28127803], length 228
14:23:23.341960 IP (tos 0x0, ttl 128, id 1109, offset 0, flags [DF], proto TCP (6), length 52)
212.26.14.210.58566 > 212.26.14.209.22: Flags [.], cksum 0xb547 (correct), ack 492, win 16349, options [nop,nop,TS val 28127903 ecr 1856558299], length 0
14:23:23.342849 IP (tos 0x0, ttl 128, id 1110, offset 0, flags [DF], proto TCP (6), length 52)
212.26.14.210.58566 > 212.26.14.209.22: Flags [.], cksum 0xb250 (correct), ack 948, win 16652, options [nop,nop,TS val 28127903 ecr 1856558299], length 0
14:23:23.342900 IP (tos 0x0, ttl 128, id 1111, offset 0, flags [DF], proto TCP (6), length 52)
212.26.14.210.58566 > 212.26.14.209.22: Flags [.], cksum 0xafb6 (correct), ack 1836, win 16430, options [nop,nop,TS val 28127903 ecr 1856558299], length 0
14:23:23.379065 IP (tos 0x0, ttl 128, id 1112, offset 0, flags [none], proto UDP (17), length 62)
212.26.14.210.65354 > 8.8.8.8.53: 20137+ A? q64.queue.vk.com. (34)
14:23:23.381085 IP (tos 0x0, ttl 128, id 1113, offset 0, flags [none], proto UDP (17), length 62)
212.26.14.210.49198 > 8.8.8.8.53: 22110+ A? q64.queue.vk.com. (34)
14:23:23.541055 IP (tos 0x0, ttl 128, id 1114, offset 0, flags [DF], proto TCP (6), length 52)
212.26.14.210.58566 > 212.26.14.209.22: Flags [.], cksum 0xaef7 (correct), ack 2064, win 16373, options [nop,nop,TS val 28127923 ecr 1856558299], length 0
14:23:23.833051 IP (tos 0x0, ttl 128, id 1115, offset 0, flags [none], proto UDP (17), length 61)
212.26.14.210.51131 > 8.8.8.8.53: 6495+ A? mail.google.com. (33)
14:23:24.084170 IP (tos 0x0, ttl 128, id 1116, offset 0, flags [none], proto ICMP (1), length 60)
212.26.14.210 > 212.26.14.209: ICMP echo request, id 4, seq 4965, length 40
14:23:24.084179 IP (tos 0x0, ttl 64, id 47724, offset 0, flags [none], proto ICMP (1), length 60, bad cksum 0 (->f07c)!)
212.26.14.209 > 212.26.14.210: ICMP echo reply, id 4, seq 4965, length 40
14:23:24.341545 IP (tos 0x10, ttl 64, id 47725, offset 0, flags [DF], proto TCP (6), length 216, bad cksum 0 (->afca)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856559299 ecr 28127923], length 164
14:23:24.341570 IP (tos 0x10, ttl 64, id 47726, offset 0, flags [DF], proto TCP (6), length 488, bad cksum 0 (->aeb9)!)
212.26.14.209.22 > 212.26.14.210.58566: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1856559299 ecr 28127923], length 436
14:23:24.341594 IP (tos 0x10, ttl 64, id 47727, offset 0, flags [DF], proto TCP (6), length 728, bad cksum 0 (->adc8)!)
billing# arp -an 212.26.14.210
Не понимает такую команду фря.
UPD: возникло недопонимание в одном из конфигов я опечатался и написал 217.26.14.210. По факту 212.26.14.210