From owner-freebsd-questions@FreeBSD.ORG Tue Feb 6 23:22:34 2007 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E994C16A402 for ; Tue, 6 Feb 2007 23:22:34 +0000 (UTC) (envelope-from norgaard@locolomo.org) Received: from strange.locolomo.org (97.pool85-48-194.static.orange.es [85.48.194.97]) by mx1.freebsd.org (Postfix) with ESMTP id 320D313C442 for ; Tue, 6 Feb 2007 23:22:33 +0000 (UTC) (envelope-from norgaard@locolomo.org) Received: from [10.35.4.65] (65.4-35-10-static.chueca.wifi [10.35.4.65]) by strange.locolomo.org (Postfix) with ESMTP id 308392E024; Wed, 7 Feb 2007 00:22:33 +0100 (CET) Message-ID: <45C90DAE.8070104@locolomo.org> Date: Wed, 07 Feb 2007 00:22:22 +0100 From: Erik Norgaard User-Agent: Thunderbird 1.5.0.9 (X11/20070123) MIME-Version: 1.0 To: Erik Norgaard References: <45BCAC1F.80701@locolomo.org> In-Reply-To: <45BCAC1F.80701@locolomo.org> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms060004090608010003000202" Cc: FreeBSD Questions Subject: Solved: Negation in tables for packet filter X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Feb 2007 23:22:35 -0000 This is a cryptographically signed message in MIME format. --------------ms060004090608010003000202 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Erik Norgaard wrote: > I want to create two tables in my packet filter, the first should match > any valid public ip, so I created a table negating anything reserved: > > table const { !0/8 !10/8 !127/8 !169.254/16 !172.16/12 \ > !192.0.2/24 !192.168/16 !198.18/15 !224/4 !240/4 } Of course, I could do something different here, defining a table for networks and negate it. The rest should be caught by the filtering rules anyway to block non-routable packets. > I have three tables with > different registered hosts with different access levels, I want to > redirect unknown hosts to a page explaining what to do to get registered, > > rdr on $wlan_if proto tcp from { $wlan_net ! ! ! } \ > to port http -> 127.0.0.1 port 8000 This one is solved with: no rdr on $wlan_if proto tcp from { } \ to port http rdr on $wlan_if proto tcp from $wlan_net to ! \ port http -> 127.0.0.1 port 8000 However, it would be nice to know if the documentation is incorrect, or there is a difference in how negation is treated in nat and filter respectively. Thanks, Erik -- Ph: +34.666334818 web: http://www.locolomo.org --------------ms060004090608010003000202 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIK6DCC BXAwggRYoAMCAQICBEVUK6IwDQYJKoZIhvcNAQEFBQAwMTELMAkGA1UEBhMCREsxDDAKBgNV BAoTA1REQzEUMBIGA1UEAxMLVERDIE9DRVMgQ0EwHhcNMDYxMTE1MDgzMTU0WhcNMDgxMTE1 MDkwMTU0WjB1MQswCQYDVQQGEwJESzEpMCcGA1UEChMgSW5nZW4gb3JnYW5pc2F0b3Jpc2sg dGlsa255dG5pbmcxOzAUBgNVBAMUDUVyaWsgTvhyZ2FhcmQwIwYDVQQFExxQSUQ6OTgwMi0y MDAyLTItNTQ0MzY5NzY5MzE1MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC1/K6+GVcF UvoWJpyfhzWbu8qEOB8jU17A0dpmts7RT+ODkYq0lxJCcvvdSXNQQurvYwaPISA+EMRy+rIm rjhoyxhsM9w/XC7gELqkr1XbGt3wR0KLr5ZcRfD4HqrWM1Eh1OYxTXKod6Ox/FAqzDAy91x8 XCZzsHtiBCdgMSYxqwIDAQABo4ICzjCCAsowDgYDVR0PAQH/BAQDAgP4MCsGA1UdEAQkMCKA DzIwMDYxMTE1MDgzMTU0WoEPMjAwODExMTUwOTAxNTRaMIIBNwYDVR0gBIIBLjCCASowggEm BgoqgVCBKQEBAQEDMIIBFjAvBggrBgEFBQcCARYjaHR0cDovL3d3dy5jZXJ0aWZpa2F0LmRr L3JlcG9zaXRvcnkwgeIGCCsGAQUFBwICMIHVMAoWA1REQzADAgEBGoHGRm9yIGFudmVuZGVs c2UgYWYgY2VydGlmaWthdGV0IGfmbGRlciBPQ0VTIHZpbGvlciwgQ1BTIG9nIE9DRVMgQ1As IGRlciBrYW4gaGVudGVzIGZyYSB3d3cuY2VydGlmaWthdC5kay9yZXBvc2l0b3J5LiBCZW3m cmssIGF0IFREQyBlZnRlciB2aWxr5XJlbmUgaGFyIGV0IGJlZ3LmbnNldCBhbnN2YXIgaWZ0 LiBwcm9mZXNzaW9uZWxsZSBwYXJ0ZXIuMEEGCCsGAQUFBwEBBDUwMzAxBggrBgEFBQcwAYYl aHR0cDovL29jc3AuY2VydGlmaWthdC5kay9vY3NwL3N0YXR1czAgBgNVHREEGTAXgRVub3Jn YWFyZEBsb2NvbG9tby5vcmcwgYQGA1UdHwR9MHswS6BJoEekRTBDMQswCQYDVQQGEwJESzEM MAoGA1UEChMDVERDMRQwEgYDVQQDEwtUREMgT0NFUyBDQTEQMA4GA1UEAxMHQ1JMMTU1NzAs oCqgKIYmaHR0cDovL2NybC5vY2VzLmNlcnRpZmlrYXQuZGsvb2Nlcy5jcmwwHwYDVR0jBBgw FoAUYLWF7FZkfhIZJ2cdUBVLc647+RIwHQYDVR0OBBYEFPd+a0ceJ9JmK934UXsB3G0mjv+f MAkGA1UdEwQCMAAwGQYJKoZIhvZ9B0EABAwwChsEVjcuMQMCA6gwDQYJKoZIhvcNAQEFBQAD ggEBAE9KhX+l/ZcnhvGPhHyWnJspyCXSiuqZ+GlgMdcKXtlu8kXsqNzfDe9qSs93++zJS+HT vAW0QgyIxjY1VpgCqgyjU8e2d2D1eSRMDB09WViZk8oZkvOy0Mq3yy//CLSw3gQbXNZF+Yt+ htss+FD+idACVyRBQqlcHuaxjguyzZkK0fGBN5H5nsklDySQCU7X0i3egeIiL7zlV3cjp9KT 12tNG4jfQTaSUzBkz0R+x+Jcdyp6AI9Qg3H1iGDDI58aCTY5ohQBpDsUcLr6U842IACNCeub qDP6nDo5lnMEXwGH/RO8r4supCf5wrNRjqEX/vokUzB5QfDGtmxxZkycaaQwggVwMIIEWKAD AgECAgRFVCuiMA0GCSqGSIb3DQEBBQUAMDExCzAJBgNVBAYTAkRLMQwwCgYDVQQKEwNUREMx FDASBgNVBAMTC1REQyBPQ0VTIENBMB4XDTA2MTExNTA4MzE1NFoXDTA4MTExNTA5MDE1NFow dTELMAkGA1UEBhMCREsxKTAnBgNVBAoTIEluZ2VuIG9yZ2FuaXNhdG9yaXNrIHRpbGtueXRu aW5nMTswFAYDVQQDFA1FcmlrIE74cmdhYXJkMCMGA1UEBRMcUElEOjk4MDItMjAwMi0yLTU0 NDM2OTc2OTMxNTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAtfyuvhlXBVL6Fiacn4c1 m7vKhDgfI1NewNHaZrbO0U/jg5GKtJcSQnL73UlzUELq72MGjyEgPhDEcvqyJq44aMsYbDPc P1wu4BC6pK9V2xrd8EdCi6+WXEXw+B6q1jNRIdTmMU1yqHejsfxQKswwMvdcfFwmc7B7YgQn YDEmMasCAwEAAaOCAs4wggLKMA4GA1UdDwEB/wQEAwID+DArBgNVHRAEJDAigA8yMDA2MTEx NTA4MzE1NFqBDzIwMDgxMTE1MDkwMTU0WjCCATcGA1UdIASCAS4wggEqMIIBJgYKKoFQgSkB AQEBAzCCARYwLwYIKwYBBQUHAgEWI2h0dHA6Ly93d3cuY2VydGlmaWthdC5kay9yZXBvc2l0 b3J5MIHiBggrBgEFBQcCAjCB1TAKFgNUREMwAwIBARqBxkZvciBhbnZlbmRlbHNlIGFmIGNl cnRpZmlrYXRldCBn5mxkZXIgT0NFUyB2aWxr5XIsIENQUyBvZyBPQ0VTIENQLCBkZXIga2Fu IGhlbnRlcyBmcmEgd3d3LmNlcnRpZmlrYXQuZGsvcmVwb3NpdG9yeS4gQmVt5nJrLCBhdCBU REMgZWZ0ZXIgdmlsa+VyZW5lIGhhciBldCBiZWdy5m5zZXQgYW5zdmFyIGlmdC4gcHJvZmVz c2lvbmVsbGUgcGFydGVyLjBBBggrBgEFBQcBAQQ1MDMwMQYIKwYBBQUHMAGGJWh0dHA6Ly9v Y3NwLmNlcnRpZmlrYXQuZGsvb2NzcC9zdGF0dXMwIAYDVR0RBBkwF4EVbm9yZ2FhcmRAbG9j b2xvbW8ub3JnMIGEBgNVHR8EfTB7MEugSaBHpEUwQzELMAkGA1UEBhMCREsxDDAKBgNVBAoT A1REQzEUMBIGA1UEAxMLVERDIE9DRVMgQ0ExEDAOBgNVBAMTB0NSTDE1NTcwLKAqoCiGJmh0 dHA6Ly9jcmwub2Nlcy5jZXJ0aWZpa2F0LmRrL29jZXMuY3JsMB8GA1UdIwQYMBaAFGC1hexW ZH4SGSdnHVAVS3OuO/kSMB0GA1UdDgQWBBT3fmtHHifSZivd+FF7AdxtJo7/nzAJBgNVHRME AjAAMBkGCSqGSIb2fQdBAAQMMAobBFY3LjEDAgOoMA0GCSqGSIb3DQEBBQUAA4IBAQBPSoV/ pf2XJ4bxj4R8lpybKcgl0orqmfhpYDHXCl7ZbvJF7Kjc3w3vakrPd/vsyUvh07wFtEIMiMY2 NVaYAqoMo1PHtndg9XkkTAwdPVlYmZPKGZLzstDKt8sv/wi0sN4EG1zWRfmLfobbLPhQ/onQ AlckQUKpXB7msY4Lss2ZCtHxgTeR+Z7JJQ8kkAlO19It3oHiIi+85Vd3I6fSk9drTRuI30E2 klMwZM9EfsfiXHcqegCPUINx9YhgwyOfGgk2OaIUAaQ7FHC6+lPONiAAjQnrm6gz+pw6OZZz BF8Bh/0TvK+LLqQn+cKzUY6hF/76JFMweUHwxrZscWZMnGmkMYICKjCCAiYCAQEwOTAxMQsw CQYDVQQGEwJESzEMMAoGA1UEChMDVERDMRQwEgYDVQQDEwtUREMgT0NFUyBDQQIERVQrojAJ BgUrDgMCGgUAoIIBRzAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEP Fw0wNzAyMDYyMzIyMjJaMCMGCSqGSIb3DQEJBDEWBBRdSjbFAR93IRY+SmTSRCCnzjsX6TBI BgkrBgEEAYI3EAQxOzA5MDExCzAJBgNVBAYTAkRLMQwwCgYDVQQKEwNUREMxFDASBgNVBAMT C1REQyBPQ0VTIENBAgRFVCuiMEoGCyqGSIb3DQEJEAILMTugOTAxMQswCQYDVQQGEwJESzEM MAoGA1UEChMDVERDMRQwEgYDVQQDEwtUREMgT0NFUyBDQQIERVQrojBSBgkqhkiG9w0BCQ8x RTBDMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDANBggqhkiG9w0DAgIBQDAHBgUrDgMC BzANBggqhkiG9w0DAgIBKDANBgkqhkiG9w0BAQEFAASBgKYgTrDe/QlLLW5HnAqiQALL3icX I5iQP+r7R/MZVadit80F0GRiBFg8eJ84TK7/hJE1bb6gL8OKaNtluQXF+CulDd+u9VeyBgwQ m6nB13NBdzq8ki29XG1Y/zrvtsPtAG3x+cFvEXgc2mkWcILKvuYZg12btqX1P/jXQJapXqxe AAAAAAAA --------------ms060004090608010003000202--