[Fedora-xen] Routing doesn't work when I boot with the Xen kernel

Jack Smith jack.delbert at gmail.com
Tue Jan 8 14:27:48 UTC 2008


I have no idea why, but the problem corrected itself overnight.  Something,
either in Fedora, the router, Comcast or somewhere must have run and fixed
the problem.  I have no idea how.

On Jan 8, 2008 8:21 AM, Dustin Henning <Dustin.Henning at prd-inc.com> wrote:

>       When the xend service starts, it creates bridges and virtual
> interfaces attached to those bridges.  I am not so familiar with it to
> tell
> you how to correct your problem on a permanent basis, but I can tell you
> that perhaps the network script isn't preserving your routes.  Check your
> routes and see if a default route to the Linksys still exists.  It also
> seems to me like F8 may use a different default xen network script, so
> depending on what you want to do, you many need to change the network
> script
> in xen's config file.  This advice may be legacy, as I know Fedora's
> implementation gets more and more custom with each release, and I
> generally
> fall back on old xen configuration techniques in spite of that, so this
> may
> not be the route you want to take.
>       Dustin
>
> From: fedora-xen-bounces at redhat.com [mailto:fedora-xen-bounces at redhat.com]
> On Behalf Of Jack Smith
> Sent: Monday, January 07, 2008 22:40
> To: fedora-xen at redhat.com
> Subject: [Fedora-xen] Routing doesn't work when I boot with the Xen kernel
>
> I have a choice of kernels to boot with in Grub,
> 2.6.21-2952.fc8xen
> 2.6.23.9-85.fc8
> 2.6.23.1-42.fc8
>
> As far as I can see, I have networking set up the same on all three.
> (Besides, wouldn't they use the same configuration files at boot time?) My
> problem is, when I boot with the xen kernel, I can't get out through my
> router. I can ping everything on my eth0 or eth1 networks, just not go
> through my eth0 Linksys router. The only difference I've been able to see
> is that something called "peth0" uses the same card as the NIC my router
> is
> on. Is this getting in the way somehow?
> eth0 Link encap:Ethernet HWaddr 00:17:31:01:C8:A8
> inet addr:192.168.1.151 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fe80::217:31ff:fe01:c8a8/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:10 errors:0 dropped:0 overruns:0 frame:0
> TX packets:47 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:494 (494.0 b) TX bytes:6566 (6.4 KiB)
>
> eth1 Link encap:Ethernet HWaddr 00:17:31:01:D0:20
> inet addr:192.168.0.3 Bcast:192.168.0.255 Mask:255.255.255.0
> inet6 addr: fe80::217:31ff:fe01:d020/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:29 errors:0 dropped:0 overruns:0 frame:0
> TX packets:63 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:2412 (2.3 KiB) TX bytes:8491 (8.2 KiB)
> Interrupt:23 Base address:0xe000
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:8504 errors:0 dropped:0 overruns:0 frame:0
> TX packets:8504 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:10008668 (9.5 MiB) TX bytes:10008668 (9.5 MiB)
>
> peth0 Link encap:Ethernet HWaddr 00:17:31:01:C8:A8
> inet6 addr: fe80::217:31ff:fe01:c8a8/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:53 errors:0 dropped:0 overruns:0 frame:0
> TX packets:121 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:5414 (5.2 KiB) TX bytes:14547 (14.2 KiB)
> Interrupt:18
>
> virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
> inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
> inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:0 (0.0 b) TX bytes:5156 (5.0 KiB)
>
> Thanks,
>
> --
> Jack Smith
>
> English doesn't borrow from other languages -- English follows other
> languages down dark alleys and takes what it wants.
>
>
>


-- 
Jack Smith

English doesn't borrow from other languages -- English follows other
languages down dark alleys and takes what it wants.
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