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Re: [Xen-users] Domain with openvpn-server-bridge to Dom0-bridge problem

To: Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Domain with openvpn-server-bridge to Dom0-bridge problem
From: Tegger <xen@xxxxxxxxx>
Date: Mon, 28 Jun 2010 23:05:07 +0200
Cc: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
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Am 22.06.2010 02:40, schrieb Fajar A. Nugraha:
On Tue, Jun 22, 2010 at 3:11 AM, Tegger<xen@xxxxxxxxx>  wrote:
start with tcpdump on dom0's eth0 then. Something like "tcpdump -n -i
eth0 host". What happens if:
- from openvpn domain, you ping to ->    you should see
packets going through both ways
- from openvpn client, ping to ->    you might see packets
going both ways, one way, or none at all

That would help you determine where the problem is.

hmm, seems to be working with tcpdump.....so it should work, but it doesn't

DOM0:~# tcpdump -n -i eth0 host
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
22:04:18.796413 arp who-has tell
I'm assuming ping from dom0's IP address correctly show up on tcpdump,
and that you're not having the config mistake that Felix suggested?

So packets arp packets go out of eth0, but no reply came back? Try
doing tcpdump on destination host (, see if it gets the
arp queries.

so i tried tcpdump on the Windows Host with ping from Windows Openvpn Client
and the is a request

tcpdump: listening on \Device\{29B14D72-................}
23:02:16.406250 ARP, Request who-has tell, length 46
23:02:16.406250 ARP, Reply is-at 00:15:f2:xx:xx:xx, length 28

but nothing more

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