Date: Thu, 24 Feb 2005 11:07:22 -0600 (CST) From: "Viren Patel" <virenp@mail.utexas.edu> To: freebsd-questions@freebsd.org Subject: Strange IP problem with 5.3 STABLE #2 Message-ID: <34543.146.6.178.5.1109264842.squirrel@mail.cm.utexas.edu>
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Hello. We have a Dell PE 1850 (dual Intel PRO/1000 nics, em driver) running FreeBSD 5.3 STABLE #2. The generic kernel has been configured to include IPFW and SMP as follows: options IPFIREWALL options IPFIREWALL_VERBOSE options IPDIVERT options SMP No other changes have been made. The firewall options in rc.conf are as follows: firewall_enable="YES" firewall_type="OPEN" firewall_quiet="NO" The problem is that some IP addresses on our class C subnet do not work. I mean the NIC can be configured to use the IP address and it shows up in ifconfig output, but the system cannot be pinged or otherwise accessed from outside the subnet. Within the subnet it is fine. The only other reference I have found to a similar issue is one involving VLANs http://lists.freebsd.org/pipermail/freebsd-current/2004-November/042591.html but I think my problem is different as I am not configuring any VLANs. Also rebooting the system makes no difference. I had been using the RELENG_5_3 branch and run into this problem. I switched to RELENG_5, rebuilt the system, and the IPs that were giving me problems started working. Now, however, I have found another one that does not work. I am running 5_3 on other Dell and non-Dell systems but with different network cards and have not encountered this problem. The problem also occurs intermittently with the GENERIC kernel. This leads me to believe the cause may be related to Intel PRO/1000 and/or em driver. Any help is much appreciated? Viren -- Viren Patel Chemistry & Biochemistry University of Texas at Austin
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