Cannot Get Back Ethernet Connection
Ted
ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
Fri Jan 27 18:14:45 UTC 2012
try to manual set networking, i.e.
ifconfig eth0 <ip addy>
route add default gw <ip addy of your gateway>
assuming you are on eth0, else change accordingly.
on that note,
what are your
netstat -rn
and
ifconfig -a
outputs?
-tl
On 01/27/2012 01:04 PM, john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org wrote:
>
>
> ------------------------------------------------------------------------
> Date: Fri, 27 Jan 2012 12:19:00 -0500
> From: ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
> To: tlug-lxSQFCZeNF4 at public.gmane.org
> CC: john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org
> Subject: Re: [TLUG]: Cannot Get Back Ethernet Connection
>
> did you add a pci card or reset or change your bios in mobo at the
> time this occurred.
> looking at other entries for other HW in lspci -vv may show other
> differences.
> There is PCI irq mapping at play and the fedora vs. ubuntu kernel are
> working it differently (i am guessing).
>
> of course if you change pci settings in your bios (i.e. no plug and
> play,and other pci/irq related settings) you risk nuking your windows
> (i know, as its happened to me once years ago).
>
> you should also look at dmesg of boot time (time frame).
> Maybe just update your ubuntu kernel? or pass in some boot string to
> manipulate APCH settings.
> But why it started to happen in the first place? i am guessing because
> of a add/remove pci card or bios change/update?
>
> -tl
>
> I haven't added a pci card nor changed bios settings.
>
> Tracing back my steps, its hard to pinpoint the last thing I did
> before it stopped working, reason being that I had the system (ubuntu)
> in sleep mode and the changes I made may not have affected it until I
> rebooted. I have in fact been making some network changes and the
> problem appeared a few days after making my changes when the system
> was rebooted. In fact I rebooted only because the system shut down one
> day when I tried waking it up. At that boot and every reboot
> afterward, there was no connection.
>
> What I did was to change the router from my coyote pc to a commercial
> box so that I could do dhcp. I bought a blu-ray disk player that I
> could not connect to the internet on static ip, so changed systems.
> Meanwhile, I kept this one box as static ip. The dhcp was only for the
> BD player. And I made sure that the dhcp numbering was kept quite
> apart from the static ip numbers I use.
>
> I got everything working OK, including the ubuntu system I was
> running. Then, after the system shut down instead of awakening and I
> could not connect, I started fiddling with dhcp ip's, ended up with ip
> conflicts and made a mess of it. But I'm fairly certain this mess
> happened *after* I lost connection in the first place. And I did get
> fedora and vista connected, so I was able to fix what I messed up.
> Except I can't fix ubuntu.
>
> I had also installed mediatomb, which I have since removed.
>
> That's the history of it in a nutshell.
>
> I can't update the ubuntu kernel very easily because I have no
> internet when I'm on ubuntu. I'm not a computer whiz, so upgrading the
> kernel without using the package system is not something I have the
> skills to do. If there are no clues on what to do to fix it, I may
> have to re-install ubuntu. Or maybe try something else.
>
> Thanks,
>
> John.
>
>
> On 01/27/2012 12:07 PM, john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org
> <mailto:john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org> wrote:
>
>
>
> > From: ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org <mailto:ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>
> > Date: Fri, 27 Jan 2012 10:23:52 -0500
> > Subject: Re: [TLUG]: Cannot Get Back Ethernet Connection
> > To: tlug-lxSQFCZeNF4 at public.gmane.org <mailto:tlug-lxSQFCZeNF4 at public.gmane.org>
> >
> > lspci -vv
> > i mean.
> >
> > -tl
>
> Here's what came out - all I get out of it is that the irq's are
> different for ubuntu and fedora.
>
> UBUNTU:
> -------------
> "dmesg eth":
> <snip>
> [ 0.815136] forcedeth: Reverse Engineered nForce ethernet
> driver. Version 0.64.
> [ 0.815419] forcedeth 0000:00:07.0: PCI INT A -> Link[APCH] ->
> GSI 23 (level, low) -> IRQ 23
> [ 0.815424] forcedeth 0000:00:07.0: setting latency timer to 64
> [ 1.336900] forcedeth 0000:00:07.0: ifname eth0, PHY OUI 0x732
> @ 13, addr 00:1f:c6:04:ec:f0
> [ 1.336903] forcedeth 0000:00:07.0: highdma pwrctl mgmt lnktim
> msi desc-v3
> [ 2270.703264] forcedeth 0000:00:07.0: irq 25 for MSI/MSI-X
> [ 2281.216026] eth0: no IPv6 routers present
>
> "lspci -vv":
> <snip>
> 00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
> Subsystem: Hewlett-Packard Company Device 2a66
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0 (250ns min, 5000ns max)
> Interrupt: pin A routed to IRQ 23
> Region 0: Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
> Region 1: I/O ports at ec00 [size=8]
> Capabilities: <access denied>
> Kernel driver in use: forcedeth
> Kernel modules: forcedeth
>
> FEDORA:
> -------------
> "dmesg eth":
> <snip>
> forcedeth: Reverse Engineered nForce ethernet driver. Version 0.64.
> forcedeth 0000:00:07.0: PCI INT A -> Link[APCH] -> GSI 22 (level,
> low) -> IRQ 22
> forcedeth 0000:00:07.0: setting latency timer to 64
> forcedeth 0000:00:07.0: ifname eth0, PHY OUI 0x732 @ 13, addr
> 00:1f:c6:04:ec:f0
> forcedeth 0000:00:07.0: highdma pwrctl mgmt lnktim msi desc-v3
> forcedeth 0000:00:07.0: irq 25 for MSI/MSI-X
> eth0: no IPv6 routers present
>
>
> "lspci -vv":
> <snip>
> 00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
> Subsystem: Hewlett-Packard Company Device 2a66
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0 (250ns min, 5000ns max)
> Interrupt: pin A routed to IRQ 25
> Region 0: Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
> Region 1: I/O ports at ec00 [size=8]
> Capabilities: <access denied>
> Kernel driver in use: forcedeth
> Kernel modules: forcedeth
>
> I find it odd that eth0 in fedora ended up with irq 25 rather than
> 22 (from the 2nd line of fedora dmesg), yet in ubuntu eth0 got irq
> 23 (from the 2nd line of ubuntu dmesg) rather than 25.
>
> Is there a clue somewhere in the above?
>
> Thanks,
>
> John.
>
>
> >
> > On Fri, Jan 27, 2012 at 10:13 AM, ted leslie
> <ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> <mailto:ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> > > Compare lspci -xx on the two linux os.
> > > -tl
> > >
> > > On Jan 27, 2012 10:08 AM, <john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org>
> <mailto:john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org> wrote:
> > >>
> > >> Hello everyone;
> > >>
> > >> After many years of trouble free ethernet connections, I have
> now lost it
> > >> (in more ways than one) and cannot get an IP address on my
> Ubuntu set up.
> > >> The condensed version of this story is that it won't connect,
> regardless of
> > >> whether I try DHCP or static IP address. Ubuntu just won't
> give me an IP
> > >> address.
> > >>
> > >> On this same box, I also have Vista and Fedora. I am able to
> connect with
> > >> either, both with DHCP and static address configurations.
> > >>
> > >> Here's a comparison of "dmesg | grep eth" for both Fedora and
> Ubuntu.
> > >>
> > >> Fedora:
> > >> <snip>
> > >> forcedeth 0000:00:07.0: irq 25 for MSI/MSI-X
> > >> eth0: no IPv6 routers present
> > >>
> > >> Ubuntu:
> > >> <snip>
> > >> [ 480.187616] forcedeth 0000:00:07.0: irq 25 for MSI/MSI-X
> > >> [ 490.348024] eth0: no[ 480.187616] forcedeth 0000:00:07.0:
> irq 25 for
> > >> MSI/MSI-X
> > >> [ 490.348024] eth0: no IPv6 routers present
> > >> [ 611.855532] forcedeth 0000:00:07.0: irq 25 for MSI/MSI-X
> > >> [ 622.492015] eth0: no IPv6 routers present
> > >>
> > >> I don't like what I see from Ubuntu and I have a feeling that
> it's not
> > >> good. However, feelings don't fix things and I don't know
> where to go to fix
> > >> it. I've been at this for days...
> > >>
> > >> Any help would be appreciated. And I can expand the story if
> necessary,
> > >> just thought I'd zero in on the above first.
> > >>
> > >> Thanks,
> > >>
> > >> John.
>
>
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