From owner-freebsd-questions@FreeBSD.ORG Mon Nov 15 19:02:13 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1675816A4CE for ; Mon, 15 Nov 2004 19:02:13 +0000 (GMT) Received: from rproxy.gmail.com (rproxy.gmail.com [64.233.170.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id A946043D1F for ; Mon, 15 Nov 2004 19:02:12 +0000 (GMT) (envelope-from wsantee@gmail.com) Received: by rproxy.gmail.com with SMTP id a36so638992rnf for ; Mon, 15 Nov 2004 11:02:12 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=plO8z7O70sCBCaj8G6Y81I1fdYpqU1E5skWln/7UhssK7TsQ+czV+lz1Pz7E793SWmJagfqw31AAIQH9ZQMFNDXdbgi+mpfgcHA967FP78t9EIn2xU0TzdK5OhjvsRI+1yrj+v2ozyQOtBDFo2gNwVarUSJ6xHfZWANrDGVZYY4= Received: by 10.38.96.12 with SMTP id t12mr719205rnb; Mon, 15 Nov 2004 11:02:11 -0800 (PST) Received: by 10.38.171.16 with HTTP; Mon, 15 Nov 2004 11:02:11 -0800 (PST) Message-ID: <80d3279c041115110214902092@mail.gmail.com> Date: Mon, 15 Nov 2004 11:02:11 -0800 From: Wes Santee To: Josh Paetzel In-Reply-To: <200411151239.49858.josh@tcbug.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <80d3279c04111510227422bb3a@mail.gmail.com> <200411151239.49858.josh@tcbug.org> cc: freebsd-questions@freebsd.org Subject: Re: LAN unreachable after 5.3 install X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Wes Santee List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Nov 2004 19:02:13 -0000 On Mon, 15 Nov 2004 12:39:49 +0000, Josh Paetzel wrote: > On Monday 15 November 2004 18:22, Wes Santee wrote: > > my problem is that after install, I can't > > see my LAN. From the FreeBSD box I try this: > > > > ping -S 10.0.0.1 10.0.0.254 > > > > but none of the pings are responded to. From 10.0.0.254, I try > > pinging 10.0.0.1, but the result is the same. > > > > Okay, here is the WEIRD part: When I run tcpdump to see what's > > going on, all of a sudden everything starts working! It's as if > > going into promiscuous mode shuts off some kind of block that I > > can't figure out. When I kill tcpdump, it goes back to not working > > again. > > The output of ifconfig may be useful in tracking down your problem Sure, here it is. xl1 is the LAN interface, tun0->xl0 is the PPPoE interface: [wes@lister:/etc] 7 $ ifconfig -a xl0: flags=8843 mtu 1500 options=8 ether 00:60:97:a7:c9:01 media: Ethernet autoselect (100baseTX ) status: active xl1: flags=8943 mtu 1500 options=9 inet 10.0.0.1 netmask 0xffffff00 broadcast 10.0.0.255 ether 00:10:5a:9a:11:8c media: Ethernet autoselect (100baseTX ) status: active lo0: flags=8049 mtu 16384 inet6 ::1 prefixlen 128 inet 127.0.0.1 netmask 0xff000000 tun0: flags=8051 mtu 1492 inet 216.113.200.107 --> 216.113.192.225 netmask 0xffffffff Opened by PID 1895 Notice there are no IPv6 configurations. I put net.inet6.ip6.auto_linklocal=0 in /etc/sysctl.conf as part of a troubleshooting test to get PPPoE to work(*). I left it in after I got PPPoE working because I don't use IPv6, but removing "options INET6" from the kernel makes pf, ipfilter, and ipfw klds complain loudly. Cheers, -Wes (*) Long story. It took over 8 hours to get the PPPoE connection working after the install. tcpdump would segfault during the PPP handshaking do I couldn't even figure out what was going on. I finally got it to work by putting "disable ipv6cp" in my ppp.conf file. Otherwise it would sit and wait for carrier forever after the first attempt.