On 21.1.18 17:18, Jack Fearnley wrote:
> On Sun, 21 Jan 2018 11:11:01 +0000, The Natural Philosopher wrote:
>
>> On 20/01/18 20:42, Jack Fearnley wrote:
>>> Now that I have my two RPi's up and running and accessible I have come
>>> up with a communication problem.
>>>
>>> I will use ssh in the following explanation but rlogin and telnet have
>>> similar problems.
>>>
>>> The wired and wireless parts of my network don't want to communicate
>>> with each other.
>>>
>>> The raspberries can ssh each other over the wifi part of the network
>>> and my two Ubuntu machines can also ssh each other over the wired
>>> network.
>>>
>>> However, I cannot ssh from Ubuntu to RPi3 when RPi3 is on wifi.
>>>
>>> If I wire the RPi3 it can ssh to and from Ubuntu.
>>>
>>> All the units can ping each other so some communication is happening.
>>>
>>> Also, when Ubuntu (wired) tries to ssh the RPi (wifi) it gets as far as
>>> requesting a password. the password is entered and then it hangs.
>>> Control c does not escape the condition. I have to kill the terminal
>>> session.
>>>
>>> I realise that this might not actually be a RPi problem but a more
>>> general routing problem.
>>>
>>> Maybe there is some obscure setting in /etc/ssh or somewhere which may
>>> be causing this but I have no idea where to start looking.
>>>
>>> Best Regards,
>>>                Jack Fearnley
>>>
>>>
>>>
>> Most likely your router is set up to separate wired from wifi
>> connections.
>>
>> Possibly has a 'guest' network on wifi that only allows internet access,
>> not access to the wired LAN
>
> So, the guest network hypothesis seems to be the favorite right now.  I
> shall study my router. It is a D-Link WBR-1310 if any of you are familiar
> with it.
>
> Some additional factoids:
>
> If I ssh to the RPi3 and give a false password it says 'permisson denied.
> Try again'
>
> My main computer (Ubuntu) has wired ip address 192.168.0.101 and wifi
> address 192.168.0.104. I CANNOT ssh from my RPi's to 192.168.0.104 even
> though they are all on the wifi network at that point!
>
> Jack
>

Have you tried pinging the PI's from the wired network and back?

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-TV

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