[mosh-users] Which ports to open on the client side?

[Martin Hannigan]

You should open 60000 through 610000. Unless you have a specific
reason to specify a port or your target server is unfiltered entirely,
you may not need to specific port.

Stock install targets those ports specifically e.g.

     hannigan at clue-store> mosh test at host.in.remote.location

I also found you need to allow ICMP. I found this tcpdump'ing to
resolve a similiar issue. I don't know if thats a function of the NAT
that I am behind or the client and I haven't dug too deeply into the
logs of both to confirm it's end to end.

Anyone?



On Thu, Aug 30, 2012 at 11:27 AM, Alan Schmitt
<alan.schmitt at polytechnique.org> wrote:
> Hello,
>
> I'm trying to run mosh in an environment where there is a firewall, so
> I'm trying to see what ports need to be open, and in what directions,
> for things to work. I have launched mosh-server on my server, and it
> does seem to be receiving the initial packet (I turned debugging on):
>
> Server now attached to client at ****:49661
>
> I then get a lot of messages with Sent, until a timeout occurs. On the
> client side (behind the firewall), I get a blue bar telling me it has
> not received any paquet from the server.
>
> What worries me is the port number at the end, which is very different
> from the one I gave on the command line. When I launch mosh-client, I
> also don't see a way to specify the port on which it will receive the
> answer. So is there a way to specify which ports to use on the client
> side?
>
> Don't hesitate to tell me if my question is not clear, I don't know much
> about UDP networking.
>
> Thanks,
>
> Alan
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