Hi,
Try pinging 192.168.0.21 from within domU and do a "tcpdump -nn -i eth1"
in dom0. See if any ARP request show up. If not, try a tcpdump within
domU and watch for ARP requests.
Cheers,
Radu
On Mon, 2009-07-06 at 15:47 -0400, Ugo Bellavance wrote:
> Hi,
>
> I've tried to figure this one out for the past few days, but I just
> can't. The problem is rather simple, everything works fine, but I can't
> ping this specific IP address (192.168.0.21), from Dom0 or DomUs. This
> IP address is an HP printer (JetDirect card)
>
>
>
> Here are the details:
>
> -Using xen-3.0.3-80.el5_3.3 on RHEL5
> -eth0 is linked to xenbr0
> -eth1 is linked to xenbr1 (which has 192.168.0.171)
> -iptables -L shows nothing (I disabled it)
> -ip6tables -L shows nothing (I disabled it)
> -route shows correct route from 192.168.0.0 255.255.255.0 -> eth1
> -arping -I eth1 192.168.0.21 shows the mac address and a response time
> -around 1 ms
> -One of the DomU is my nagios server, and I can monitor all the service
> I want, except a service on 192.168.0.21
> -I cannot access any service on this IP (port 21, 80, 280, 443, 515, 631
> and 9100 shows as open when nmapped from a different computer)
> -There is no firewall between my Xen host and the HP printer
>
> Any help would be appreciated.
>
> Regards,
>
> Ugo
>
>
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