[Xen-users] Problem MTU > 1500

[Mesut Donmez <tsb20112012@xxxxxxxxx>]

Hi,

 

I am using XCP version 1.5beta (1.4.90) with for the host the kernel version 2.6.32.12-0.7.1.xs1.4.90.530.170661xen en for the guests reh6.1 as operating system.

When we  increase the MTU of the ethX, vifX and xenbrX to 9000 and also for other machines in our test envioranment and we give the command; ping -s 9000 <ip of extern machine> from the guest to an other machine

wich is not on the same host we do not get any response.

When we give the same command to an other guest on the same host the ping command succeeds.

When we ping from the host to other machines outside the host the ping command is also succeeds.

 

Has somebody ideas what I am doing wrong?

 

 

 

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