On 8/24/14 5:47 AM, David F. Sire wrote:
Hi,
I'm using LISP tunnels in Openvswitch and I read in REAME-lisp that if
"the VMs have IP addresses in the same subnet but the hypervisors are
separated by a router" in the network topology, we need an ARP proxy.
Can you give us more detail about what you are trying to do? Unless you
really really want to work on an ARP proxy internal to OVS, there may be
other solutions.
For example, you could use /32 (v4) or /128 (v6) addresses in your VMs
to avoid having two communicating hosts being in the same subnet and
sending ARP requests if the first place.
Alternatively, if you use an external controller, or you have a static
environment, you can implement an “ARP responder” with flow rules only,
as is done by OpenStack:
https://wiki.openstack.org/wiki/Ovs-flow-logic#OVS_flows_logic_with_local_ARP_responder
You can find detailed examples in the following blog post, look for
Table 105 - ARP responder:
http://dtucker.co.uk/hack/building-a-router-with-openvswitch.html
Let us know if this helps with your use case, or please describe what
you’re trying to achieve.
HTH,
-Lori
What i want to do is to add this proxy in the code.
I have no idea how to do it.
Any help will be appreciated.
Thanks,
David
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