RealVNC questions about ports and display number

evets dranem edranem "at" dranem.org
Thu Nov 10 13:03:01 2005


I was able to get incoming vnc over wireless working ONCE yesterday
When I went to confirm the setup  I was out of luck [I had changed t of
course ]
It appears to be a windows issue when I have Wired AND Wireless
 I will keep investigating because I saw a glimmer of hope yesterday

evets

James Weatherall wrote:

> Dragos,
>
> VNC doesn't have any "subtle requirements" of routers. It simply
> requires that they work as per the relevant specifications
> (IEEE802.11, Ethernet, IP, etc).
>
> The error that you described in your previous mail, doesn't sound at
> all like the sort of thing you'll get from a broken router, but like
> a simple misconfiguration issue. It's either the case that you're
> attempting to connect to a non-existent IP address, or to a system
> that has a firewall preventing incoming connections to VNC Server, or
> to a router that has the wrong port forwarding configured for the VNC
> ports.
>
> As a simple test, can you connect to your VNC server computer using
> its LAN address from another computer connected to the router?
>
> Regards,
>
> Wez @ RealVNC Ltd.
>
>
>> -----Original Message----- From: Dragos Maciuca
>> [mailto:dragos.maciuca "at" gmail.com] Sent: 05 November 2005 03:41 To:
>> James Weatherall Cc: vnc-list "at" realvnc.com Subject: Re: RealVNC
>> questions about ports and display number
>>
>> James,
>>
>> I'm willing to buy your last conjecture. I know how to do port
>> forwarding properly and my other gizmo works fine with port
>> forwarding over wireless. I assume VNC has some other subtle
>> requirement which the damn router does not implement. I didn't
>> mean to complain about the VNC, I just meant to complain about the
>> retail routers and maybe find out about at least one model that
>> works.
>>
>> Thanks a lot!
>>
>> Dragos
>>
>>
>> On 11/4/05, James Weatherall <jnw "at" realvnc.com> wrote:
>>
>>> Dragos,
>>>
>>> Error 10060 means that the computer using the IP address to
>>
>> which you are
>>
>>> attempting to connect did not respond at all. This is
>>
>> nothing to do with
>>
>>> VNC, but indicates that you are using the wrong IP address,
>>
>> the IP address
>>
>>> isn't reachable, you don't have port forwarding set up in
>>
>> your router
>>
>>> correctly, or your port forwarding configuration is forwarding
>>> the connection attempt to a non-existent IP address on your
>>
>> LAN. It's also
>>
>>> possible, if you're seeing this when testing from within
>>
>> the same LAN, that
>>
>>> you have one of the many brands of broken routers that don't do
>>> port forwarding correctly when traffic is sent to their external
>>>
>>
>> address from
>>
>>> within the LAN.
>>>
>>> To reiterate the main point - this is *not* related to VNC, it's
>>> a configuration issue with your router.
>>>
>>> Cheers,
>>>
>>> Wez @ RealVNC Ltd.
>>>
>>>
>>>> -----Original Message----- From: Dragos Maciuca
>>>> [mailto:dragos.maciuca "at" gmail.com] Sent: 04 November 2005 06:53
>>>> To: James Weatherall Subject: Re: RealVNC questions about ports
>>>> and display number
>>>>
>>>> Hi James!
>>>>
>>>> Let's say a computer is behind a retail router and
>>
>> everything (port
>>
>>>> forwarding, connections, etc.) is setup properly, I can
>>
>> connect to is
>>
>>>> just fine if that computer is connect via a Cat5 to the
>>
>> router. If,
>>
>>>> however, that same computer is connected via 802.11 to
>>
>> the router then
>>
>>>> you can't connecto to it via VNC. I get the 10060 error. I've
>>>> managed to repeat this with several setups and several
>>
>> routers (mostly
>>
>>>> Negear and one Linksys). As I mentioned before, I know that
>>>> port forwarding works because I have another gizmo that needs
>>>> port forwarding over 802.11 and it works fine. So I honestly
>>
>> don't know
>>
>>>> what's going on.
>>>>
>>>> Let me know if you want more details.
>>>>
>>>> Cheers!
>>>>
>>>> Dragos
>>>>
>>>>
>>>> On 11/3/05, James Weatherall <jnw "at" realvnc.com> wrote:
>>>>
>>>>> Dragos,
>>>>>
>>>>> Can you explain what you mean when you say that your router
>>>>
>>>> doesn't work
>>>>
>>>>> with VNC? What is the problem you are seeing?
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Wez @ RealVNC Ltd.
>>>>>
>>>>>
>>>>>> -----Original Message----- From: vnc-list-admin "at" realvnc.com
>>>>>> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of
>>
>> Dragos Maciuca
>>
>>>>>> Sent: 03 November 2005 14:22 To: vnc-list "at" realvnc.com
>>>>>> Subject: Re: RealVNC questions about ports and display
>>>>>> number
>>>>>>
>>>>>> I'll reply to this message as a way of getting back on my
>>>>
>>>> soap box. I
>>>>
>>>>>> have yet to find one retail router that can be used with
>>>>
>>>> VNC over the
>>>>
>>>>>> wireless connection. I don't know what they are missing,
>>>>
>>>> but it's not
>>>>
>>>>>> the port forwarding part as I have another device
>>
>> that needs port
>>
>>>>>> forwarding and it works fine over wireless. As James
>>>>
>>>> found out, they
>>>>
>>>>>> work fine over wired connections.
>>>>>>
>>>>>> So, if someone knows of a retail router that can be used
>>>>
>>>> with VNC over
>>>>
>>>>>> the wireless connection, please let us know.
>>>>>>
>>>>>> Dragos
>>>>>>
>>>>>>> I have no problem coneting to my VNC inside my firewall
>>>>>>> ;-) [even when I have two firewalls in-line] I can
>>>>>>> connect to three machines inside 2 of windows XP Pro;
>>>>>>> Linux, The problem I do have is connecting to my wireless
>>>>>>> laptop althoug I can connect to it when it is hardwired
>>>>>>>
>>>>>>> I can conect OUT with the wireless just not in
>>>>>>>
>>>>>>> Using DYNDNS.org I can get clients to call me; I can call
>>>>>>> myself when I
>>>>
>>>> am off-site
>>>>
>>>>>>> D-Link 804v Router Virtual Server Settings RULE inside
>>>>>>> IP 03. 192.168.8.100 5903 ~ 5903 - Linux
>>>>>>> Mandrake 10.1
>>>>>>
>>>>>> RealVNC 4.1
>>>>>>
>>>>>>> 03. 192.168.8.100 88 ~ 88 - Linux Mandrake
>>>>
>>>> 10.1 WebServer
>>>>
>>>>>>> 03. 192.168.8.100 22 ~ 22 - Linux Mandrake
>>>>>>> 10.1 04. 192.168.8.102 5907 ~ 5907 - XPPro
>>
>> Server VNC 4.1.1
>>
>>>>>>> 05. 192.168.8.101 5905 ~ 5905 - Laptop Server
>>>>>>
>>>>>> [display Zero]
>>>>>>
>>>>>>> 06. 192.168.8.101 5500 ~ 5500 - Listening
>>>>>>> Viewer 07. 192.168.8.101 5708 ~ 5708 - Laptop
>>>>>>> UserMode Steve


>>>>>>> 08. 192.168.8.101 5500 ~ 5500 - Laptop
>>>>>>> UserMode Dale

>> 09. 192.168.8.101 5805 ~ 5805 - Laptop Java