From owner-freebsd-net Thu Sep 26 9:49:15 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4419937B401; Thu, 26 Sep 2002 09:49:12 -0700 (PDT) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by mx1.FreeBSD.org (Postfix) with ESMTP id A404143E6E; Thu, 26 Sep 2002 09:49:11 -0700 (PDT) (envelope-from larse@ISI.EDU) Received: from isi.edu (iga0vwbiz3ogk53i@nik.isi.edu [128.9.168.58]) by boreas.isi.edu (8.11.6/8.11.2) with ESMTP id g8QGn4C07623; Thu, 26 Sep 2002 09:49:04 -0700 (PDT) Message-ID: <3D933A80.7070208@isi.edu> Date: Thu, 26 Sep 2002 09:49:04 -0700 From: Lars Eggert User-Agent: Mozilla/5.0 (X11; U; Linux i386; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: en-us, de-de MIME-Version: 1.0 To: David Zimmer Cc: freebsd-ipfw@freebsd.org, freebsd-net@freebsd.org, dominik.brettnacher@zimmer-medienhaus.de Subject: Re: Forwarding selected broadcasts with ipfw References: Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms000801050701030508060001" Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org This is a cryptographically signed message in MIME format. --------------ms000801050701030508060001 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit David Zimmer wrote: > 1. I introduced a rule that should forward the packets, this rule looks > like > > fwd 212.88.130.135 udp from any to 255.255.255.255 19813 > > 2. The incoming packets match this rule according to the output of ipfw > show > > 3. The forwarded packet never gets out onto any interface though, > according to tcpdump What's the TTL on the broadcast packets? Lars -- Lars Eggert USC Information Sciences Institute --------------ms000801050701030508060001 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 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJtjCC AzgwggKhoAMCAQICEGZFcrfMdPXPY3ZFhNAukQEwDQYJKoZIhvcNAQEEBQAwgdExCzAJBgNV BAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEaMBgG A1UEChMRVGhhd3RlIENvbnN1bHRpbmcxKDAmBgNVBAsTH0NlcnRpZmljYXRpb24gU2Vydmlj ZXMgRGl2aXNpb24xJDAiBgNVBAMTG1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBDQTErMCkG CSqGSIb3DQEJARYccGVyc29uYWwtZnJlZW1haWxAdGhhd3RlLmNvbTAeFw0wMDA4MzAwMDAw MDBaFw0wNDA4MjcyMzU5NTlaMIGSMQswCQYDVQQGEwJaQTEVMBMGA1UECBMMV2VzdGVybiBD YXBlMRIwEAYDVQQHEwlDYXBlIFRvd24xDzANBgNVBAoTBlRoYXd0ZTEdMBsGA1UECxMUQ2Vy dGlmaWNhdGUgU2VydmljZXMxKDAmBgNVBAMTH1BlcnNvbmFsIEZyZWVtYWlsIFJTQSAyMDAw LjguMzAwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN4zMqZjxwklRT7SbngnZ4HF2ogZ gpcO40QpimM1Km1wPPrcrvfudG8wvDOQf/k0caCjbZjxw0+iZdsN+kvx1t1hpfmFzVWaNRqd knWoJ67Ycvm6AvbXsJHeHOmr4BgDqHxDQlBRh4M88Dm0m1SKE4f/s5udSWYALQmJ7JRr6aFp AgMBAAGjTjBMMCkGA1UdEQQiMCCkHjAcMRowGAYDVQQDExFQcml2YXRlTGFiZWwxLTI5NzAS BgNVHRMBAf8ECDAGAQH/AgEAMAsGA1UdDwQEAwIBBjANBgkqhkiG9w0BAQQFAAOBgQAxsUtH XfkBceX1U2xdedY9mMAmE2KBIqcS+CKV6BtJtyd7BDm6/ObyJOuR+r3sDSo491BVqGz3Da1M G7wD9LXrokefbKIMWI0xQgkRbLAaadErErJAXWr5edDqLiXdiuT82w0fnQLzWtvKPPZE6iZp h39Ins6ln+eE2MliYq0FxjCCAzkwggKioAMCAQICAwglQTANBgkqhkiG9w0BAQQFADCBkjEL MAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJQ2FwZSBUb3du MQ8wDQYDVQQKEwZUaGF3dGUxHTAbBgNVBAsTFENlcnRpZmljYXRlIFNlcnZpY2VzMSgwJgYD VQQDEx9QZXJzb25hbCBGcmVlbWFpbCBSU0EgMjAwMC44LjMwMB4XDTAyMDgyNDE4NTMzOVoX DTAzMDgyNDE4NTMzOVowVDEPMA0GA1UEBBMGRWdnZXJ0MQ0wCwYDVQQqEwRMYXJzMRQwEgYD VQQDEwtMYXJzIEVnZ2VydDEcMBoGCSqGSIb3DQEJARYNbGFyc2VAaXNpLmVkdTCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBANI2Rrt4ggaQ/IrOsDeOm2H4/R5FRIL6JjDY3StE aogp1r23WKniQ1Vj98Nu5WxlaZ3Iam3Jen5T66H8u7rtMNpK4qAeAGoBsVeyVr1+CTFeuv+m xCh7BvBJwhLdm0zDaoDT05YKYZaqtsT+F286FWJQg31Xtf+vTKLVVrHcsafnteyal2NEt7Ac yZZfjsVLwxp2Lq3cwYfRQRoo7/yCVzS7HsgM6jmbO4taEMo4yC2rpnUbWEUCDTaCYgpAXzAl oiNk7GDh0wz2s5ZSnHRvNSBMAjCmpNtSYHfXFI1ANwrrrHIJ7Ei83+XN32PWY4OPzO3iown9 VR+vM+8lNx9OX28CAwEAAaNWMFQwKgYFK2UBBAEEITAfAgEAMBowGAIBBAQTTDJ1TXlmZkJO VWJOSkpjZFoyczAYBgNVHREEETAPgQ1sYXJzZUBpc2kuZWR1MAwGA1UdEwEB/wQCMAAwDQYJ KoZIhvcNAQEEBQADgYEAXcrIlKmPLM/r8r3oz2ZLPLaT1AyMjYTZY2qq/R7SUtFa9BNlTIFh DG78QKfJ9lo2LMzTPQqMZgNLmj95GbNPI8P8OIq2K6MeCZWz08ROackqTFP6xWbIFIfXcBVR 1dZnDDyDKBBh05KkvyTPawSQyOBUeNBfQUyO4TE+3o58U8UwggM5MIICoqADAgECAgMIJUEw DQYJKoZIhvcNAQEEBQAwgZIxCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUx EjAQBgNVBAcTCUNhcGUgVG93bjEPMA0GA1UEChMGVGhhd3RlMR0wGwYDVQQLExRDZXJ0aWZp Y2F0ZSBTZXJ2aWNlczEoMCYGA1UEAxMfUGVyc29uYWwgRnJlZW1haWwgUlNBIDIwMDAuOC4z MDAeFw0wMjA4MjQxODUzMzlaFw0wMzA4MjQxODUzMzlaMFQxDzANBgNVBAQTBkVnZ2VydDEN MAsGA1UEKhMETGFyczEUMBIGA1UEAxMLTGFycyBFZ2dlcnQxHDAaBgkqhkiG9w0BCQEWDWxh cnNlQGlzaS5lZHUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDSNka7eIIGkPyK zrA3jpth+P0eRUSC+iYw2N0rRGqIKda9t1ip4kNVY/fDbuVsZWmdyGptyXp+U+uh/Lu67TDa SuKgHgBqAbFXsla9fgkxXrr/psQoewbwScIS3ZtMw2qA09OWCmGWqrbE/hdvOhViUIN9V7X/ r0yi1Vax3LGn57XsmpdjRLewHMmWX47FS8Madi6t3MGH0UEaKO/8glc0ux7IDOo5mzuLWhDK OMgtq6Z1G1hFAg02gmIKQF8wJaIjZOxg4dMM9rOWUpx0bzUgTAIwpqTbUmB31xSNQDcK66xy CexIvN/lzd9j1mODj8zt4qMJ/VUfrzPvJTcfTl9vAgMBAAGjVjBUMCoGBStlAQQBBCEwHwIB ADAaMBgCAQQEE0wydU15ZmZCTlViTkpKY2RaMnMwGAYDVR0RBBEwD4ENbGFyc2VAaXNpLmVk dTAMBgNVHRMBAf8EAjAAMA0GCSqGSIb3DQEBBAUAA4GBAF3KyJSpjyzP6/K96M9mSzy2k9QM jI2E2WNqqv0e0lLRWvQTZUyBYQxu/ECnyfZaNizM0z0KjGYDS5o/eRmzTyPD/DiKtiujHgmV s9PETmnJKkxT+sVmyBSH13AVUdXWZww8gygQYdOSpL8kz2sEkMjgVHjQX0FMjuExPt6OfFPF MYIDJzCCAyMCAQEwgZowgZIxCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUx EjAQBgNVBAcTCUNhcGUgVG93bjEPMA0GA1UEChMGVGhhd3RlMR0wGwYDVQQLExRDZXJ0aWZp Y2F0ZSBTZXJ2aWNlczEoMCYGA1UEAxMfUGVyc29uYWwgRnJlZW1haWwgUlNBIDIwMDAuOC4z MAIDCCVBMAkGBSsOAwIaBQCgggFhMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZI hvcNAQkFMQ8XDTAyMDkyNjE2NDkwNFowIwYJKoZIhvcNAQkEMRYEFDIpA3qDIRKgMlN69VY5 9EmPnoU2MFIGCSqGSIb3DQEJDzFFMEMwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0G CCqGSIb3DQMCAgFAMAcGBSsOAwIHMA0GCCqGSIb3DQMCAgEoMIGtBgsqhkiG9w0BCRACCzGB naCBmjCBkjELMAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJ Q2FwZSBUb3duMQ8wDQYDVQQKEwZUaGF3dGUxHTAbBgNVBAsTFENlcnRpZmljYXRlIFNlcnZp Y2VzMSgwJgYDVQQDEx9QZXJzb25hbCBGcmVlbWFpbCBSU0EgMjAwMC44LjMwAgMIJUEwDQYJ KoZIhvcNAQEBBQAEggEAq6XldKOs6OZSQFk3LcqfZzojvyGeOKjE+SPhELMzY9CQgcEJ6uur sZlafKlTw0wy/zn2Qdnekn2vZImznNhfm67RS4F6tdFVPhcpNt/obob7cIBuvH2WPiOetvUv /VE5hHJbe4gU9RUXRRrP/a6tylJRC0F8tSrz1b6Kl47mQCOEPpKhCYe14Y1gy58lQ2zXwxK8 SJauIuQYA6bt+zb9Mhfu5OaMHsvlsUZqdHHwEiyV5bgkBeV8oHkuR4DueZpCa33MOWMfZEUB mx4UweIYh5CBliQ4U5Qb2SoD7bhC+LXRX7ZjrMhPUUdBt01j/Z9vVWs8RYZnWIcYGXoHNufc WgAAAAAAAA== --------------ms000801050701030508060001-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message