From owner-freebsd-current@FreeBSD.ORG Thu Oct 30 19:42:36 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CCF2916A4CE for ; Thu, 30 Oct 2003 19:42:36 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by mx1.FreeBSD.org (Postfix) with ESMTP id 27B6E43FA3 for ; Thu, 30 Oct 2003 19:42:36 -0800 (PST) (envelope-from larse@ISI.EDU) Received: from isi.edu (c-24-130-112-121.we.client2.attbi.com [24.130.112.121]) by boreas.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id h9V3gXj06084; Thu, 30 Oct 2003 19:42:33 -0800 (PST) Message-ID: <3FA1DA25.5060501@isi.edu> Date: Thu, 30 Oct 2003 19:42:29 -0800 From: Lars Eggert Organization: USC Information Sciences Institute User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007 X-Accept-Language: en-us, en MIME-Version: 1.0 To: eischen@vigrid.com References: In-Reply-To: Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms040608070207050700030001" cc: current@freebsd.org Subject: Re: wi problem with message > 7400 bytes X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 31 Oct 2003 03:42:36 -0000 This is a cryptographically signed message in MIME format. --------------ms040608070207050700030001 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Daniel Eischen wrote: > Greetings, > > I'm having a problem receiving UDP messages over a wi interface: > > wi1: at port 0x180-0x1bf irq 11 function 0 config 1 on pccard0 > wi1: 802.11 address: 00:02:2d:4a:d8:7d > wi1: using Lucent Technologies, WaveLAN/IEEE > wi1: Lucent Firmware: Station (6.10.1) > wi1: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps > > (wi0 is also a 'Dell TrueMobile 1150 Series PC Card' in > a mini-PCI card, but hangs the system when you try and > configure it -- so it obviously isn't configured in this > set up.) > > I have a small program that does a trivial UDP test: > > http://people.freebsd.org/~deischen/udptest.c > > My results show that: > > o Receiving large (> 7400 bytes) messages does not work. > > o Sending large messages works. > > o Sending & receiving large messages over a wired > interface (dc, fxp, etc) works. > > Am I suppose to be able to receive UDP messages larger > than 7400 bytes over the air? Could you post a tcpdump for each case? I wonder if this is related to a fragmentation issue I've seen in the past. Thanks, Lars -- Lars Eggert USC Information Sciences Institute --------------ms040608070207050700030001 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 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