Date: Thu, 5 Jun 2008 12:27:19 +0800 From: "Izwan Mohd" <zuan@mylinux.net.my> To: freebsd-net@freebsd.org Cc: Peter Jeremy <peterjeremy@optushome.com.au> Subject: Re: network keep droping Message-ID: <b51ac81b0806042127g50a84e7fyc5146fc5d07ea6d0@mail.gmail.com> In-Reply-To: <20080604194059.GE1028@server.vk2pj.dyndns.org> References: <b51ac81b0806041137k130a6c57s38115749326f2199@mail.gmail.com> <20080604194059.GE1028@server.vk2pj.dyndns.org>
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> First question would be: What has changed? > > Are you able to identify when the problem occurs? This might let you > associate the problem with an internal cronjob or network activity. it randomly happen so I can't determine when it happen my cron script just try to ping and if it not successfull it will flush and restart the network > > What does ifconfig report? Does the interface look normal or is it > reporting something strange? ifconfig does not show any abnormality but maybe I will double check it Is the switch reporting any events associated with your port? > Nope no report from switch indicating something wrong the the port that the machine are using > What do you see if you tcpdump the interface whilst its not working? > Are you seeing normal subnet broadcast traffic? Unicast traffic > directed to your box? Outgoing traffic from your box? > I will check this one this afternoon because the machine is dead again I'll post the finding later on > > Does physically unplugging and re-connecting the network cable > correct the problem? Are you able to (temporarily) use a different > swichport or NIC? > sometime it does sometime it wont, already try changing to other port on the switch still the same, changing the NIC is not an option for me because it a rack mount server using on board NIC and no extra slot to add a new network card on it. > Finally, more detail on your configuration might trigger someone's > memory: What version of 6.x? What NIC/MII? How much memory? What > network features (vlan, firewall, dummynet, netgraph, carp, ...) are > you using? > The server using FreeBSD 6.0-RELEASE the NIC is intel i can't remember the model but freebsd detect it as "em0" the server memory is 1GB, not special network fetures it only running snort and nessus will post more detail after I check the machine this afternoon Thank You, Regards, Zuan > > -- > Peter Jeremy > Please excuse any delays as the result of my ISP's inability to implement > an MTA that is either RFC2821-compliant or matches their claimed behaviour. > -- Izwan Mohd Malaysian Linux Community http://mylinux.net.my
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