23.05.2012 23:12, Eugene Berdnikov пишет: > По логам: тяжёлый случай. Первой рекомендацией будет поставить ядро 3.2.0 > из дистрибутива. Слишком много странностей, нужно сократить круг поиска. Поставил. Надо в initrd для него модули добавлять. Позже займусь.
> Второй будет поставить в машину дополнительную сетевушку и попробовать её.
>
> Наконец, предлагаю ещё раз получить нерабочее состояние системы и
> запустить немного изменённый скрипт.
>
> ip addr list
> ip route list
> ip link set dev eth0 promisc off
> ip route flush cache
> ip nei flush dev eth0
> ip -s nei list
> ip -s -t mon all > ipmon.log &
> tcpdump -nUlep -i eth0 -w dump.pcap arp or icmp &
> sleep 1
> ip route get 192.168.1.1
> date +%T.%N
> ping -n -c2 192.168.1.1
> ip -s nei list
> sleep 1
> date +%T.%N
> ping -n -c2 192.168.1.2
> ip link set dev eth0 promisc on
> ip route flush cache
> ip nei flush dev eth0
> ip route list
> ip -s nei list
> ip route get 192.168.1.1
> date +%T.%N
> ping -n -c2 192.168.1.1
> ip -s nei list
> sleep 1
> ip link set dev eth0 promisc off
> killall tcpdump
> killall ip
>
> Пришлите выдачу этого скрипта, а также образовавшиеся файлики
> ipmon.log и dump.pcap.
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
qlen 1000
link/ether aa:00:04:00:0a:04 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.3/24 brd 192.168.1.255 scope global eth0
inet6 fe80::a800:4ff:fe00:a04/64 scope link
valid_lft forever preferred_lft forever
dnet 1.10/16 scope global eth0
default via 192.168.1.1 dev eth0
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.3
192.168.1.1 dev eth0 ref 482 used 57/29/11 probes 1 FAILED
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
192.168.1.1 dev eth0 src 192.168.1.3
cache
22:09:01.761817708
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
>From 192.168.1.3 icmp_seq=1 Destination Host Unreachable
>From 192.168.1.3 icmp_seq=2 Destination Host Unreachable
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 1007ms
pipe 2
192.168.1.1 dev eth0 ref 484 used 1/33/0 probes 6 FAILED
22:09:05.772485453
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
>From 192.168.1.3 icmp_seq=1 Destination Host Unreachable
>From 192.168.1.3 icmp_seq=2 Destination Host Unreachable
--- 192.168.1.2 ping statistics ---
2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 999ms
pipe 2
default via 192.168.1.1 dev eth0
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.3
192.168.1.1 dev eth0 ref 484 used 6/37/4 probes 6 FAILED
192.168.1.2 dev eth0 ref 2 used 2/63/0 probes 6 FAILED
192.168.1.1 dev eth0 src 192.168.1.3
cache
22:09:08.788413224
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=1.87 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=0.929 ms
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.929/1.402/1.876/0.474 ms
192.168.1.1 dev eth0 lladdr 00:22:b0:be:bf:e3 ref 488 used 0/0/0 probes 4
REACHABLE
192.168.1.2 dev eth0 ref 2 used 3/64/1 probes 6 FAILED
17 packets captured
17 packets received by filter
0 packets dropped by kernel
P.S.:
Что это за фигня в логе?
"22:09:09.826493 IP dana-0 > pppoe-212.104.114.140.armageddon-bg.com: ICMP
dana-0 udp port 6881 unreachable, length 134
22:09:10.281225 IP dana-0 > 220.172.12.72: ICMP dana-0 udp port 6881
unreachable, length 137
22:09:10.427993 IP dana-0 > 202.171.254.21: ICMP dana-0 udp port 6881
unreachable, length 171
22:09:10.524994 IP dana-0 > n058152219168.netvigator.com: ICMP dana-0 udp port
6881 unreachable, length 137"
dump.pcap
Description: application/vnd.tcpdump.pcap
Timestamp: Sat May 26 22:09:04 2012 770055 usec
[NEIGH]192.168.1.1 dev eth0 ref 485 used 1/33/0 probes 6 FAILED
Timestamp: Sat May 26 22:09:08 2012 783409 usec
[NEIGH]192.168.1.2 dev eth0 ref 3 used 2/63/0 probes 6 FAILED
Timestamp: Sat May 26 22:09:08 2012 784265 usec
[LINK]2: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
link/ether aa:00:04:00:0a:04 brd ff:ff:ff:ff:ff:ff
Timestamp: Sat May 26 22:09:08 2012 790021 usec
[NEIGH]192.168.1.1 dev eth0 lladdr 00:22:b0:be:bf:e3 ref 488 used 0/0/0 probes 4 REACHABLE
Timestamp: Sat May 26 22:09:10 2012 793814 usec
[LINK]2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
link/ether aa:00:04:00:0a:04 brd ff:ff:ff:ff:ff:ff
