Hi, On Tue, Aug 20, 2013 at 10:25:08AM +0200, Peter Warasin wrote: > When analyzing with tcpdump, I see arp packets going to the client > asking for the mac-address, but no answer. On client side I could not > make sure that the arp packet came in, still need to check this.
Yeah, that's a good starting point - the ARP packet should be visible
in four places
- tcpdump on the tap interface of the server (as "arp")
- tcpdump on the eth interface of the server, encapsulated in OpenVPN,
so it's not "arp" but "a tcp/udp packet sent to the particular client,
in sync with the ARP packet" (there will be pings and other stuff
between client and server, so watch the timing)
- tcpdump on the eth interface of the client, encapsulated in OpenVPN
(same thing)
- tcpdump on the tap interface of the client (as "arp")
gert
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