Tinc & moving VMs accross network

Etienne Dechamps etienne at edechamps.fr
Tue Dec 8 01:14:16 CET 2015


On 7 December 2015 at 23:12, Guus Sliepen <guus at tinc-vpn.org> wrote:
>> I don't use tinc in Switch mode, but looking at the code (especially
>> the learn_mac() function) it looks like tinc is not really able to
>> migrate MAC addresses from one node to another in the way you'd
>> expect. It will add the MAC address to the new node, but will not
>> remove it from the other.
>
> It actually does, search for the comment "Fast handoff" in
> protocol_subnet.c. It should cause the old MAC entry to be removed in at
> most PingTimeout (which defaults to 5) seconds.

Ah, indeed. I stand corrected then, sorry for the confusion. I guess
Florent should check both the tinc internal MAC table (using tinc dump
subnets) and brctl's MAC table (like Hendrik suggested) to verify that
everything is working as it should.


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