Intermittent TCP connect issues when using tinc 1.0.23 and IPv6

[Guus Sliepen]

On Fri, Dec 27, 2013 at 12:07:48PM +0000, tomp at tomp.co.uk wrote:

> I have been chatting with Tobias Volk, the author of PeerVPN, and I
> did ask about the fragmentation support in PeerVPN.
> 
> He replied:
> 
> "this is not necessary since PeerVPN fragments/reassembles packets
> itself."
> 
> Perhaps this is a more recent development, or I have misunderstood.

Ah, you are correct, I see now it has a hardcoded maximum payload size of 1024
bytes, and indeed handles fragmentation and reassembly itself.

> If Tinc is not doing key regeneration every hour, what else is the
> TCP connection used for, if not exchange keys. Does it send data
> over regularly to keep firewall state active?

It does send keepalive packets over TCP as well to keep the connection alive.

-- 
Met vriendelijke groet / with kind regards,
     Guus Sliepen <guus at tinc-vpn.org>
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