Date: Tue, 14 Aug 2007 08:28:39 +0200 From: "Luca Da Col" <ldacol@gmail.com> To: freebsd-net@freebsd.org Subject: Unexpected behaviors connectivity FreeBSD Message-ID: <f4acd0280708132328s11348e15nb4e5b6ade303500c@mail.gmail.com>
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We have a FreeBSD 6.2 System connected to our DMZ used to store periodical informations about our network. FreeBSD is showing some unexpected behaviors loosing connectivity with other boxes in the network. Problem is completely aleatory and can affect any box. However rest of boxes are completely reachables from FreeBSD while specific server is affected. Deleting ARP entry in FreeBSD box solves the problem as you can see from the following lines. Problem is showing quite frequently during the day. Any hint about this issue? Thank you, Best regards, Luca Da Col [root@srv001 /Scripts]# [root@srv001 /Scripts]# ping SWI002-DMZ PING SWI002-DMZ (10.192.149.45): 56 data bytes ^C --- SWI002-DMZ ping statistics --- 20 packets transmitted, 0 packets received, 100% packet loss [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -a ? (10.192.149.9) at 08:00:20:f2:cf:da on dc0 [ethernet] ? (10.192.149.33) at 00:07:ec:50:e4:08 on dc0 [ethernet] ? (10.192.149.44) at 00:0a:b7:8d:0b:00 on dc0 [ethernet] ? (10.192.149.45) at 00:07:85:a5:20:40 on dc0 [ethernet] [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -d 10.192.149.45 10.192.149.45 (10.192.149.45) deleted [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# ping SWI002-DMZ PING SWI002-DMZ (10.192.149.45): 56 data bytes 64 bytes from 10.192.149.45: icmp_seq=0 ttl=255 time=1.261 ms 64 bytes from 10.192.149.45: icmp_seq=1 ttl=255 time=1.196 ms 64 bytes from 10.192.149.45: icmp_seq=2 ttl=255 time=1.092 ms 64 bytes from 10.192.149.45: icmp_seq=3 ttl=255 time=1.093 ms ^C --- SWI002-DMZ ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.092/1.160/1.261/0.072 ms [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -a ? (10.192.149.9) at 08:00:20:f2:cf:da on dc0 [ethernet] ? (10.192.149.33) at 00:07:ec:50:e4:08 on dc0 [ethernet] ? (10.192.149.44) at 00:0a:b7:8d:0b:00 on dc0 [ethernet] ? (10.192.149.45) at 00:07:85:a5:20:40 on dc0 [ethernet]
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