From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maciej Browarski Subject: Re: Re: [xen-discuss] problem with network in domU Date: Mon, 19 Nov 2007 16:59:22 +0100 Message-ID: <4741B2DA.2050708@sun.com> References: <4741AD49.4040107@sun.com> <4741AFFD.2010208@sun.com> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=ISO-8859-1 Content-Transfer-Encoding: 7BIT Return-path: In-reply-to: <4741AFFD.2010208@sun.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: michael schuster Cc: xen-devel@lists.xensource.com, xen-discuss@opensolaris.org List-Id: xen-devel@lists.xenproject.org michael schuster wrote: > Maciej Browarski wrote: >> Hello, >> I'm using xen-3.1.2 downloaded today from repository. >> As dom0 I have linux-kernel 2.6.18 and Debian distro. >> As domU I install OpenSolaris Nevada 75a. >> My config file looks: >> name = 'osdev' >> memory = '1024' >> vcpus = 2 >> disk = [ 'file:/mnt/xen/osdev/disk.raw,0,w', >> 'file:/mnt/xen/osdev/disk1.raw,1,w' ] >> vif = [ '' ] >> on_shutdown = 'destroy' >> on_reboot = 'destroy' >> on_crash = 'destroy' >> >> After xm create I see new devices in dom0: peth0, xenbr0 and etc. >> bash# brctl show >> xenbr0 8000.feffffffffff no vif0.0 >> peth0 >> vif3.0 >> So, on dom0 outside network works fine, but on domU I have strange >> behavior ( dom0 and domU has addresses from DHCP). >> From domU I catch good address. I can also ping outside gateway but >> connect with any TCP/UDP ports outside my machine is incorrect (there >> are only SYN and SYN/ACK nothing more and timeout). >> All connection between dom0 and domU works good. >> Have you any idea what's wrong ? > > sounds a bit like you're having difficulty with checksums. > > the following is a way to disable ip checksums *in dom0*; I don't know > whether the same works in domU, but you could give it a try: > > Set "ip:dohwcksum" to 0 in /etc/system. Reboot, retest, report results. > > (btw: that means you need to add a line looking like this: > set ip:dohwcksum = 0 > to /etc/system in your domU) > > hth Thanks :) it's works :) Best Regards, Maciej