Date: Thu, 11 Nov 2004 22:57:12 -0800 From: "David Roberts" <dtrobert@pacbell.net> To: <freebsd-ipfw@freebsd.org> Subject: upgrading from 5.2.1 to 5.3 broke my ipfw Message-ID: <20041112065715.4EEE743D49@mx1.FreeBSD.org>
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Hi, I have been using ipfw for some time now and recently upgraded from 5.2.1 to 5.3. My firewall immediately started blocking me even from pinging localhost. I also noted an error around an ipfw log entry I had and commented it out. I checked online and saw an IPFIREWALL_DEFAULT_TO_ACCEPT and figured I'd give it a try since I was always frustrated that flushing my rules would bump me off. I rebuilt the kernel and now I have the opposite problem, eveything is allowed no matter what my rules say. My kernel opts are now options IPFIREWALL options IPFIREWALL_VERBOSE options IPFIREWALL_VERBOSE_LIMIT=10 options IPFIREWALL_DEFAULT_TO_ACCEPT After flushing ipfw I get # ipfw show 65535 67836 20914281 deny ip from any to any I even added another deny rule but everything is still allowed. Does that option just disable my firewall entirely? My #ipfw show after running my firewall.rules is: 00100 0 0 allow ip from 127.0.0.1 to any keep-state 00200 0 0 allow ip from 192.168.1.0/28 to any keep-state 00300 0 0 allow ip from <myip> to any keep-state 00400 0 0 deny ip from 192.168.1.0/28 to any in via fxp0 00500 0 0 deny ip from any to 172.16.0.0/12 via fxp0 00600 0 0 deny ip from any to 192.168.0.0/16 via fxp0 00700 0 0 deny ip from any to 0.0.0.0/8 via fxp0 00800 0 0 deny ip from any to 169.254.0.0/16 via fxp0 00900 0 0 deny ip from any to 192.0.2.0/24 via fxp0 01000 0 0 deny ip from any to 224.0.0.0/4 via fxp0 01100 0 0 deny ip from any to 240.0.0.0/4 via fxp0 01200 0 0 deny ip from 172.16.0.0/12 to any via fxp0 01300 0 0 deny ip from 192.168.0.0/16 to any via fxp0 01400 0 0 deny ip from 0.0.0.0/8 to any via fxp0 01500 0 0 deny ip from 169.254.0.0/16 to any via fxp0 01600 0 0 deny ip from 192.0.2.0/24 to any via fxp0 01700 0 0 deny ip from 224.0.0.0/4 to any via fxp0 01800 0 0 deny ip from 240.0.0.0/4 to any via fxp0 01900 0 0 allow tcp from any to <myip> dst-port 80 setup 02000 0 0 allow tcp from any to <myip> dst-port 22 setup keep-state 02100 0 0 allow tcp from 192.168.1.0/28 to any setup 65535 70851 21336238 deny ip from any to any Thanks David
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