Re: OT: Getting lot of "TCP Retransmission" when ssh to on machine

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On 11 November 2017 at 11:28, Jon Ingason <jon.ingason@xxxxxxxxx> wrote:
Hi, know that this not a Fedora problem. I have browsed the web without
getting answer the fit the problem I have.

I thing this has something to do with the network between to machines.
One, machine A, is in my study in my house the other, machine B, is in
my garage that i about 10 m away from house. Machine A is connected
directly the main Internet router.

By direct, do you mean using a cable or wifi?  Does A get an internet address or
a private subnet address?
 
Between that router and machine B are
two extenders, C and D. Extender C is in extender mode, while D i meshed
to C. Machine B is directly connected to D.

The problem is that when I ssh from B to A everything is as it should
be. But if I ssh from A to B I get lot of "TCP Retransmission". The
connection from B to Internet is working excellent as well as for all
other devices connected to my network.

If A has an internet address and B is on a private subnet using NAT,
A won't be able to connect to B, but B can connect to A. 


I just wonder if someone had some experience similar problems.

Machines A and B are x86_64 Fedora 26 kernel 4.13.11-200
Router is ASUS RT-N66R
Extenders are Strong Range Extender 1600
-

That router supports multiple subnets with different access restrictions and
the range extender has "access point mode" which usually has NAT.  If
you don't need A or B to be reachable on the internet or separate subnets
with access restrictions, you should try to keep A and B on the same (private)
subnet.


 
t
Jon Ingason
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--
George N. White III <aa056@xxxxxxxxxxxxxx>
Head of St. Margarets Bay, Nova Scotia
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