> В дампе не увидел ни одного запроса ни icmp ни arp на
> адрес 172.16.10.1. Вы когда делаете пинг ping 172.16.10.1 во втором окошке
> tcpdump -nvvvi eth1 icmp в третьем окошке tcpdump -evvvni eth1 arp.
> Нужен таки дамп, а если бы и с 172.16.10.1 попросить провайдера
> снять, было бы вообще идеально.Вот как "шел пинг" =)
[root@tux ~]# ping 172.16.10.1
PING 172.16.10.1 (172.16.10.1) 56(84) bytes of data.
From 172.16.10.2 icmp_seq=2 Destination Host Unreachable
From 172.16.10.2 icmp_seq=3 Destination Host Unreachable
From 172.16.10.2 icmp_seq=4 Destination Host Unreachable
From 172.16.10.2 icmp_seq=6 Destination Host Unreachable
From 172.16.10.2 icmp_seq=7 Destination Host Unreachable
From 172.16.10.2 icmp_seq=8 Destination Host Unreachable
From 172.16.10.2 icmp_seq=10 Destination Host Unreachable
From 172.16.10.2 icmp_seq=11 Destination Host Unreachable
From 172.16.10.2 icmp_seq=12 Destination Host Unreachable
From 172.16.10.2 icmp_seq=14 Destination Host Unreachable
From 172.16.10.2 icmp_seq=15 Destination Host Unreachable
From 172.16.10.2 icmp_seq=16 Destination Host Unreachable
From 172.16.10.2 icmp_seq=18 Destination Host Unreachable
From 172.16.10.2 icmp_seq=19 Destination Host Unreachable
From 172.16.10.2 icmp_seq=20 Destination Host Unreachable
From 172.16.10.2 icmp_seq=22 Destination Host Unreachable
From 172.16.10.2 icmp_seq=23 Destination Host Unreachable
From 172.16.10.2 icmp_seq=24 Destination Host Unreachable
From 172.16.10.2 icmp_seq=26 Destination Host Unreachable
From 172.16.10.2 icmp_seq=27 Destination Host Unreachable
From 172.16.10.2 icmp_seq=28 Destination Host Unreachable
From 172.16.10.2 icmp_seq=30 Destination Host Unreachable
From 172.16.10.2 icmp_seq=31 Destination Host Unreachable
From 172.16.10.2 icmp_seq=32 Destination Host Unreachable
From 172.16.10.2 icmp_seq=34 Destination Host Unreachable
From 172.16.10.2 icmp_seq=35 Destination Host Unreachable
From 172.16.10.2 icmp_seq=36 Destination Host Unreachable
From 172.16.10.2 icmp_seq=38 Destination Host Unreachable
From 172.16.10.2 icmp_seq=39 Destination Host Unreachable
From 172.16.10.2 icmp_seq=40 Destination Host Unreachable
From 172.16.10.2 icmp_seq=42 Destination Host Unreachable
From 172.16.10.2 icmp_seq=43 Destination Host Unreachable
From 172.16.10.2 icmp_seq=44 Destination Host Unreachable
From 172.16.10.2 icmp_seq=46 Destination Host Unreachable
From 172.16.10.2 icmp_seq=47 Destination Host Unreachable
From 172.16.10.2 icmp_seq=48 Destination Host Unreachable
From 172.16.10.2 icmp_seq=50 Destination Host Unreachable
From 172.16.10.2 icmp_seq=51 Destination Host Unreachable
From 172.16.10.2 icmp_seq=52 Destination Host Unreachable
From 172.16.10.2 icmp_seq=54 Destination Host Unreachable
From 172.16.10.2 icmp_seq=55 Destination Host Unreachable
From 172.16.10.2 icmp_seq=56 Destination Host Unreachable
^C
--- 172.16.10.1 ping statistics ---
56 packets transmitted, 0 received, +42 errors, 100% packet loss, time 55129ms
pipe 3
[root@tux ~]#
В это же время во втором окошке:[root@tux ~]# tcpdump -nvvvi eth1 arp
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
21:33:08.854560 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:09.857880 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:10.861213 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:12.864559 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:13.867881 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:14.871214 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:16.874548 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:17.877889 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:18.881223 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:20.884547 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:21.887889 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:22.891223 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:24.894548 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:25.897877 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:26.901213 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:28.904546 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:29.907889 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:30.911212 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:32.914558 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:33.917878 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:34.921222 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:36.924544 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:37.682559 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.12 tell 172.16.10.12, length 46
21:33:37.927878 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:38.518985 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.12 tell 172.16.10.12, length 46
21:33:38.931228 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:39.518983 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.12 tell 172.16.10.12, length 46
21:33:40.934548 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
21:33:41.937877 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 172.16.10.1 tell 172.16.10.2, length 28
^C
29 packets captured
29 packets received by filter
0 packets dropped by kernel
[root@tux ~]#
И в третьем:
[root@tux ~]# tcpdump -nvvvi eth1 icmp
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
[root@tux ~]#
Третье оказалось самое молчаливое.. В то же самое время компьютер под Windows свободно пингует адрес 172.16.10.1 и ходит во внутреннюю сеть.. Попросить провайдера смогу только в ближайшее время, определенно не могу даже сказать когда, сейчас выясняю номер договора с провайдером, чтобы было на что сослаться при составлении заявки..