On 03/14/2015 03:32 PM, Georgios Dimitrakakis wrote:
Hello again Rick!
On 03/13/2015 06:25 PM, Georgios Dimitrakakis wrote:
If I do an :
arping -U -I etho x.x.x.x
where x.x.x.x is the IP address.
I can almost immediately access them outside of the subnet!
I had forgotten that, Still is that the very same set of options the
OpenStack code uses?
I am not aware about that and I would like to know!
What does Openstack does and how ofted does it send the gratuitous ARP
request?
I don't recall off the top of my head (perhaps someone else does) - and
my corner of the world is Neutron rather than Nova networking. If there
is much logging enabled I suspect you could see the commands in the
logs. Certainly Neutron is very "chatty" when it comes to logging things.
Do you mean that OpenStack is sending a gratuitous ARP for all
and the router is ignoring them unless it is for a specific IP address?
If this is the case is there anything I can do?
I will second the suggestion of getting a packet trace to see just
what sort of ARP traffic the compute node(s) send and then compare
that with the documentation for your router.
rick
I will try to see if I can get anything but the problem is that the
datacenter hosting the facility is in Japan and there is a huge gap
communicating with them (actually there is no communication).
If I could only find out what does the router accept would be very nice :-)
Nothing beats being able to see the blinking lights :)
rick
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