Thans for your reply. It's very helpful.
Note : It does not matter now but what wanted to do is to add a module in the Open vSwitch code simulating ARP proxy for LISP tunnels. I read and understood the code but I wonder if this module must be enable for all vports in datapath or just for LISP vport. Please could you give me some guidance. Maybe I will do it later so I won't use mininet scripts to automatically install flow rules Thanks a lot, David 2014-08-25 12:34 GMT+02:00 Lori Jakab <[email protected]>: > 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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