Interface Status changes to UP and Down

[Gloomy Group]

I have tested by changing Cable and Switch too but doesnot seem to solve problem. May be it;s due to NIC card, it's inbuilt Intel fxp0 card. 

> Date: Thu, 6 Sep 2007 10:17:09 +0100
> From: tom at tomjudge.com
> To: gloomygroup at hotmail.com
> CC: freebsd-net at freebsd.org
> Subject: Re: Interface Status changes to UP and Down
> 
> Gloomy Group wrote:
> > Hi all,
> > 
> >    I am running Freebsd 6.2 as Transparent proxy Server. My hardware is Intel(R) Pentium(R) 4 CPU 3.00GHz, 1GB DDR2 Memory and 2 SATA hardisk. While checking dmesg it shows link state change to up and Down and sometimes the server crashes.
> > 
> > ipfw: pullup failed
> > ipfw: pullup failed
> > ipfw: pullup failed
> > ipfw: pullup failed
> > ipfw: pullup failed
> > ipfw: pullup failed
> > fxp0: link state changed to DOWN
> > fxp0: link state changed to UP
> > fxp0: link state changed to DOWN
> > fxp0: link state changed to UP
> > fxp0: link state changed to DOWN
> > fxp0: link state changed to UP
> > fxp0: link state changed to DOWN
> > fxp0: link state changed to UP
> > fxp0: link state changed to DOWN
> > fxp0: link state changed to UP
> > fxp0: link state changed to DOWN
> > 
> > 
> >          Is this due to misconfigured firewall rules or some special tuning need in kernel variables; Below is my IPFW rules:
> 
> This is most likely to be being caused by a cable or hardware problem 
> (NIC or switch).  The firewall can't affect the link state of the NIC.
> 
> 
> Tom
> 
> > 
> > 00100 allow ip from any to any via lo0
> > 00101 check-state
> > 00102 deny icmp from any to any in icmptypes 5,9,13,14,15,16,17
> > 00200 allow icmp from 202.xx.xx.0/24 to me in
> > 00201 allow icmp from 202.xx.xx.0/24 to me in
> > 00300 allow tcp from me to any out keep-state
> > 00301 allow udp from me to any dst-port 53 keep-state
> > 00302 allow ip from me to any out keep-state
> > 00303 allow tcp from any 80,443 to me in keep-state
> > 00304 allow tcp from any 80,443 to any out keep-state
> > 00400 allow tcp from 202.79.xx.0/24 to me dst-port 2001 keep-state
> > 00500 allow udp from 202.79.xx.xx 3130 to me dst-port 3130 keep-state
> > 00501 allow tcp from 202.79.xx.xx 3128 to me in
> > 00600 allow udp from 202.79.xx.xx to me dst-port 161 keep-state
> > 00601 allow udp from 202.79.xx.xx to me dst-port 3401 keep-state
> > 03000 allow tcp from 202.79.xx.0/24 to me dst-port 3128
> > 03001 allow tcp from 202.79.xx.0/24 to me dst-port 3128
> > 03002 fwd 127.0.0.1,3128 tcp from 202.79.xx.0/24 to any dst-port 80 keep-state
> > 03003 fwd 127.0.0.1,3128 tcp from 202.79.xx.0/24 to any dst-port 80 keep-state
> > 65534 deny log logamount 200 ip from any to any
> > 
> 
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