ping between nated hosts

[Donald Pearson]

Can you give some more detail about the specifics of the network?  Such as
the subnetting?   Is the Tinc interface on A bridged?

On Mon, Feb 16, 2009 at 10:23 PM, Christian Lyra <lyra at pop-pr.rnp.br> wrote:

> Hi there,
>
> I´m trying to use tinc to solve this scenario:
>
> Host A has public/know ip address
> Hosts B and C are behind nat
>
> I´m using switch mode, and hosts B and C has IndirectMode enabled.
> Host A is in listen only mode (no ConnectTo set), hosts B and C
> connects to A.  Everything works almost as expected... B and C
> connects to A, and they can ping each other, but ONLY after each other
> learns the other MAC thru A. What I mean is: if I start A, B, C, and
> try to ping C from B, ping will fail, but if I send a ping to A from
> C, then B will be able to ping C as it will learn the MAC of C thru A.
> If there´s no traffic between the hosts for a while, then the arp
> entries will expire from arp tables and the problem will happen again.
>
> Is there a way to solve this with a tinc configuration? leaving a cron
> job to make nated hosts ping A is not a elegant option :-(
>
> --
> Christian Lyra
> PoP-PR/RNP
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>
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