Update: just got back from the remote site and checked the following:
1. tcpdump on the interface only show switch broadcast nothing more 2. the connection restored by doing arp -ad && ping <IP> On Thu, Jun 5, 2008 at 12:27 PM, Izwan Mohd <[EMAIL PROTECTED]> wrote: > > 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. >> > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
