Re: [Xen-users] dom0 can not ping dom3

[rajarshi das <dazio_r@xxxxxxxxx>]

Hi,

 

Thanks for your inputs.
I ran the ethtool command as mentioned. However, tcpdump on both eth0 (dom3) and vif3.0 show the same output as before.

 

Any suggestions?

 

Thanks in advance,

Rajarshi

Brad Plant <bplant@xxxxxxxxxxxxxx> wrote:

rajarshi das wrote:
> Hi,
>
> I am running SLES10. I did the following:
>
> $ brctl addbr test1
> $ ifconfig test1 up
> $ xm create -c myconfig # myconfig contains an entry vif=[ 'bridge=test1' ]
>
> # in dom0
> $ ifconfig vif3.0 192.168.0.3
> $ ping 192.168.0.4 &
> $ tcpdump -i vif3.0
>
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on vif3.0, link-type EN10MB (Ethernet), capture size 96 bytes
> 18:47:28.075979 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 8, length 64
> 18:47:29.076063 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 9, length 64
> 18:47:30.076092 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 10, length 64
> 18:47:31.076162 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 11, length 64
> 18:47:32.076217 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 12, length 64
> 18:47:33.076280 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 13, length 64
> 18:47:34.076344 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 14, length 64
> ......
>
>
> # in dom3
> $ ifconfig eth0 192.168.0.4
> $ tcpdump -i eth0
> NET: Registered protocol family 17
> device eth0 entered promiscuous mode
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
> 18:47:39.035054 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 19, length 64
> 18:47:40.035114 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 20, length 64
> 18:47:41.035158 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 21, length 64
> 18:47:42.035226 IP 192.168.0.3 > 192.168.0.4: ICMP echo request, id 22552, seq 22, length 64
>
> .......
>
> A similar problem was posted on this list before, but the solution (doing a ifconfig up) did not work in my case.
>
> Please suggest on how to get dom0 (vif3.0) to ping dom3(eth0) in this case.

Hi Rajarshi,

Try running "ethtool -K eth0 tx off" in your dom0.

Cheers,

Brad

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