No I think that is correct because Javier is using an old Xen version (3.0.3).
What does your ARP table on Dom0 show? Does it have a binding for 172.30.1.81
(your external machine)? It looks as if your ARP requests from Dom0 do not
reach the network, and so the ping request does not go out.
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Dustin Henning
> Sent: 03 September 2008 17:48
> To: 'Javier Merino'; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-users] eth0 on dom0 not working on a bridged conf
>
> I think eth0 should be included under interfaces here:
>
> bridge name bridge id STP enabled interfaces
> xenbr0 8000.feffffffffff no vif0.0
> peth0
> vif3.0
>
> The appropriate brctl command will add it to the bridge (not at a Linux
> machine to get you that command). This is because peth0 is the
> physical
> connection to the network and eth0 is where your address is assigned.
> This
> is the normal setup for older versions of xen, except eth0 should have
> been
> automatically added to the bridge during startup. On newer versions,
> xenbr0
> is deprecated and eth0 is the bridge (which has the address assigned to
> itself).
> Dustin
>
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Javier
> Merino
> Sent: Wednesday, September 03, 2008 12:20
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] eth0 on dom0 not working on a bridged conf
>
> Hi,
>
> I've installed xen 3.0.3 from packages (xen-linux-system) on a debian
> etch, and i've configured it with network-bridge script in the default
> way (netdev=eth0, bridge=xenbr0, etc...) which is ok for me.
>
> the problem I have:
>
> I cannot ping any outer machine from dom0 (nor any outer machine can
> ping me). It gives me a "Destination Host Unreachable" message that
> makes me think there is no arp response.
>
> other symptoms:
>
> I can ping from dom0 any domU's I create...
> ... and from those domU's I can ping dom0 and also the outer
> machines that I was unable to ping from dom0. => so, xenbr0 if working
> properly with peth0, vifX.0 (and eth0 on domU's)
>
> Configuration looks fine in comparation with other xen 3.0 machines I
> have working. Here is a "/etc/xen/scripts/network-bridge status":
>
> ============================================================
> 6: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
> link/ether 00:14:5e:da:3a:a2 brd ff:ff:ff:ff:ff:ff
> inet 172.30.1.16/24 brd 172.30.1.255 scope global eth0
> inet6 fe80::214:5eff:feda:3aa2/64 scope link
> valid_lft forever preferred_lft forever
> 13: xenbr0: <BROADCAST,NOARP,UP,10000> mtu 1500 qdisc noqueue
> link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
> inet6 fe80::200:ff:fe00:0/64 scope link
> valid_lft forever preferred_lft forever
>
> bridge name bridge id STP enabled interfaces
> xenbr0 8000.feffffffffff no vif0.0
> peth0
> vif3.0
>
> 172.30.1.0/24 dev eth0 proto kernel scope link src 172.30.1.16
> default via 172.30.1.1 dev eth0
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 172.30.1.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth0
> 0.0.0.0 172.30.1.1 0.0.0.0 UG 0 0 0
> eth0
> ============================================================
>
>
> If I manually "/etc/xen/scripts/network-bridge stop", eth0 begins
> working correctly with the exterior (I can ping, ssh, outer machines
> and
> viceversa).
>
> dmesg, xend.log and xen-debug.log looks fine for me, but I may missed
> up something .
>
> I've installed tshark to test the communications when network-bridge
> is up, but my knowledge is not enough to understand what's happening.
> I'll send the output of whatever you ask me.
>
> Thanks if anyone can help. I am lost after trying almost my best.
>
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>
>
>
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