Приветствую!
Подскажите, что может быть!? Периодически пропадает пинг, до некоторых из машин в сети, не до всех, и в неопределенный момент восстанавливается. Решил проверить утилитой tcpdump, когда на моей машине пропал доступ к данному серверу:
# tcpdump host <comp_name>
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
10:43:24.002733 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7781, length 40
10:43:29.003009 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7787, length 40
10:43:34.003203 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7793, length 40
10:43:39.002984 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7799, length 40
10:43:44.003357 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7805, length 40
10:43:49.003862 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7811, length 40
10:43:54.003024 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7817, length 40
10:43:59.003405 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7823, length 40
10:44:04.004026 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7829, length 40
10:44:09.004561 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7835, length 40
10:44:14.003744 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 7841, length 40
11 packets captured
11 packets received by filter
0 packets dropped by kernel
# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
# tcpdump host <comp_name>
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
10:47:21.042258 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 8208, length 40
10:47:21.045093 IP <server_name> > <comp_name>: ICMP echo reply, id 1, seq 8208, length 40
10:47:22.043586 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 8211, length 40
10:47:22.043629 IP <server_name> > <comp_name>: ICMP echo reply, id 1, seq 8211, length 40
10:47:23.045497 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 8214, length 40
10:47:23.045531 IP <server_name> > <comp_name>: ICMP echo reply, id 1, seq 8214, length 40
10:47:24.046407 IP <comp_name> > <server_name>: ICMP echo request, id 1, seq 8217, length 40
10:47:24.046440 IP <server_name> > <comp_name>: ICMP echo reply, id 1, seq 8217, length 40
8 packets captured
8 packets received by filter
0 packets dropped by kernel