Mailinglist Archive: opensuse-virtual (5 mails)

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Re: [opensuse-virtual] [Fwd: Malfunctioning bridge]
2011/8/28 Hans Witvliet <suse@xxxxxxxxxxx>:
Hi all,

In order to create a -more or less- representative test configuration, I
tried to copy a real life situation into a xen-set-up:
-external firewal (kc3040)
-openvpn server (kc3072)
-Internal firewall (kc3041)
-management gateway (kc3075)
-asterisk pabx
-mysql server

To simulate different networks, I created dummy ethernet devices, and
connected bridges to it.
All of the four bridges are working OK, except ONE: BR2 and also only
from one virtual machine: openvpn/kc3072

If i ping on the vpn-box (vpn is not setup yet) towards internal
firewall i see no traffic at all ( 172.16.100.1 => 172.16.100.2 )
Even if i do an tcpdump on the bridge-device from DOM-0, i dont see
anything.

On the otherhand, if i do a ping the otherway round (int-fw towards vpn)
i see the icmp-request on the bridge device (but no repy, hence the
problem)

Looked at [internal] firewall, at the bridges, routing, but i'm
clue-less….
Tried to move the whole configuration towards a different DOM-0, with
the same result, rebuild the vpn-dom-U: still no show
All firewall's are down.

All boxes are suse: both firewals are open_11.4, mgnt+vpn are sles11sp1
and dom0 is also sles, but tried also with open.

Tried the lists at xen, but the only replies were questions what i used
to make the drawing ;-)

Any suggestion where to look next?


did you try "ethtool - K eth0 tx off" [1]

Hope the helps.

Thanks,
Todd

[1]
http://xen.markmail.org/search/?q=xen+ethtool+-K+eth0+tx+checksum+off#query:xen%20ethtool%20-K%20eth0%20tx%20checksum%20off+page:1+mid:ozu24u7azscw2zwf+state:results

--
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/
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