From owner-freebsd-net@FreeBSD.ORG Tue Feb 26 17:42:29 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E0B0D106566B for ; Tue, 26 Feb 2008 17:42:29 +0000 (UTC) (envelope-from dave@raven.za.net) Received: from elektra.opteqint.net (elektra.opteqint.net [209.25.178.105]) by mx1.freebsd.org (Postfix) with ESMTP id E194C13C43E for ; Tue, 26 Feb 2008 17:42:29 +0000 (UTC) (envelope-from dave@raven.za.net) Received: from [41.242.10.56] (helo=DHA12123) by elektra.opteqint.net with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.66 (FreeBSD)) (envelope-from ) id 1JU3oy-000DPJ-AS; Tue, 26 Feb 2008 09:42:31 -0800 From: "Dave Raven" To: "'Ingo Flaschberger'" References: <03cb01c8789b$04aade30$0e009a90$@za.net> In-Reply-To: Date: Tue, 26 Feb 2008 19:42:17 +0200 Message-ID: <03cf01c8789e$f15b0860$d4111920$@za.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ach4ncrwm1TUbaUZRxa2BbK0XxHZDwAAJPFQ Content-Language: en-us Cc: freebsd-net@freebsd.org Subject: RE: Hping/Ping X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Feb 2008 17:42:30 -0000 Hi, Yes there are no hops, I'm just pinging the router infront of me. # netstat -nI silbpi1 Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll silbp 1500 00:e0:ed:0c:a8:5d 1009627153 2459 1323071177 0 0 silbp 1500 x.x.x.x x.x.x.x 606092 - 1323073544 - - There are errors, but that was from when I was changing the mode of the interface (from autosense) - they don't increment as the pings drop.. # ifconfig silbpi1 silbpi1: flags=8843 mtu 1500 options=3 inet x.x.x.x netmask 0xfffffff0 broadcast x.x.x.x ether 00:e0:ed:0c:a8:5d media: Ethernet autoselect (1000baseTX ) status: active The silbpi card uses the em driver - I tried the onboard em cards but had the same problem.. I've also connected a cable to my other card, silbpi0, which does no traffic and pinging on there is stable. That seems to indicate it's something card specific, but hping never has a problem ? Thanks for the help Dave -----Original Message----- From: Ingo Flaschberger [mailto:if@xip.at] Sent: Tuesday, February 26, 2008 7:34 PM To: Dave Raven Cc: freebsd-net@freebsd.org Subject: RE: Hping/Ping Dear Dave, > Also, if I use tethereal to sniff for icmp packets to the host I'm > pinging I see them all even though I am getting drops -- > > 23 packets transmitted, 22 packets received, 4% packet loss > > The last two lines of my tethereal -- > > 45 22.214610 x.x.x.x -> y.y.y.y ICMP Echo (ping) request > 46 22.215133 y.y.y.y -> x.x.x.x ICMP Echo (ping) reply > > 46/2 (request/reply) = 23. So 23 packets actually went out and returned, yet > I still get drops? *) You ping machine to machine (no other hops between)? *) ifconfig *) netstat -nI Kind regards, Ingo Flaschberger