router config to work with VNC

Peter Coulter peter "at" coulter.ndo.co.uk
Fri Mar 26 23:25:02 2004


If you find out how to do that let me know how it's done as it would be a
useful additional bit of knowledge! It's not something I think I can
actually do on my Netgear router, but perhaps the D-link has more
functionality. 

--------------------------------------------
Peter Coulter
--------------------------------------------


> -----Original Message-----
> From: Tom Knowlton [mailto:tom "at" buyersfund.com] 
> Sent: Friday, March 26, 2004 11:10 PM
> To: peter "at" coulter.ndo.co.uk; vnc-list "at" realvnc.com
> Subject: RE: router config to work with VNC
> 
> 
> Network Admin says I need to change the DLink router settings 
> so it routes to itself.
> 
> -----Original Message-----
> From: Peter Coulter [mailto:peter "at" coulter.ndo.co.uk]
> Sent: Friday, March 26, 2004 4:01 PM
> To: Tom Knowlton; vnc-list "at" realvnc.com
> Subject: RE: router config to work with VNC
> 
> 
> The answer to that is yes ... plug the Actiontec not into the 
> WAN port of the D-link but into one of the LAN ports! :-) 
> Seems like a waste of good router though, but you are then 
> literally using it as a plain switch!
> 
> --------------------------------------------
> Peter Coulter
> --------------------------------------------
> 
> 
> > -----Original Message-----
> > From: Tom Knowlton [mailto:tom "at" buyersfund.com]
> > Sent: Friday, March 26, 2004 10:49 PM
> > To: peter "at" coulter.ndo.co.uk; vnc-list "at" realvnc.com
> > Subject: RE: router config to work with VNC
> > 
> > 
> > Isn't there anyway to sort of turn the DLink router into
> > something that behaves more like a hub or a switch??????
> > 
> > 
> > Tom
> > 
> > -----Original Message-----
> > From: Peter Coulter [mailto:peter "at" coulter.ndo.co.uk]
> > Sent: Friday, March 26, 2004 3:39 PM
> > To: Tom Knowlton; vnc-list "at" realvnc.com
> > Subject: RE: router config to work with VNC
> > 
> > 
> > Tom:
> > 
> > The ActionTec 1524R SU is a wireless broadband gateway
> > (modem/router). The Dlink 614+ is a wireless router. This 
> > begs the quesiton why you need the D-link router at all? 
> > Unless there is some other reason you haven't mentioned that 
> > you need the D-link for? 
> > 
> > To connect to the internet via a DSL connection, and have a
> > home LAN sharing that connection, is fully within the scope 
> > of the ActionTec alone (more than enough connectivity with 4 
> > x LAN ports PLUS wireless). 
> > In fact adding the D-link into the mix is just adding to your 
> > configuration difficulties (connecting two NAT routers 
> > back-to-back, each DHCP servers, each with wireless!!). For a 
> > start you've having to set up port-forwarding in two places 
> > when it really isn't necessary.
> > 
> > I suggest using the ActionTec alone and see if you can get
> > GoToMyVNC.com to see Display 0 .. 9.
> > 
> > --------------------------------------------
> > Peter Coulter
> > --------------------------------------------
> > 
> > 
> > > -----Original Message-----
> > > From: Tom Knowlton [mailto:tom "at" buyersfund.com]
> > > Sent: Friday, March 26, 2004 8:43 PM
> > > To: peter "at" coulter.ndo.co.uk; vnc-list "at" realvnc.com
> > > Subject: RE: router config to work with VNC
> > > 
> > > 
> > > Peter:
> > > 
> > > I'm grateful for your help.
> > > 
> > > A little more on the modem and router:
> > > 
> > > Both have 4 ethernet ports.  DLink Router has a WAN port, 
> which the 
> > > ActionTec is plugging into right now (using one of the ethernet 
> > > ports on the ActionTec).
> > > 
> > > The ActionTec is a model 1524R SU.  It is a Wireless-ready (not 
> > > being utilized by me) DSL broadband modem.
> > > 
> > > ActionTec Vendor Home Page:
> > > http://www.actiontec.com/
> > > 
> > > ActionTec Model specific: 
> > > http://www.actiontec.com/products/broadband/wireless_ready_dsl
> > > _gateway/wireless_ready_dsl_gateway_specifications.html
> > > 
> > > 
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > 
> > > DLink Wireless Router is a DI 614+.  I need the DLink so I can 
> > > transmit the Internet to our laptop, and daughter's computer 
> > > upstairs.
> > > 
> > > DLink router Vendor Home Page:
> > > http://www.dlink.com/
> > > 
> > > 
> > > DLink router Model specific: http://www.dlink.com/products/?pid=20
> > > 
> > > 
> > > 
> > > 
> > > =============================================
> > > =============================================
> > > 
> > > To answer your other questions (best I can):
> > > 
> > > Q:  Is the modem a DHCP server?
> > > A:  Yes.  I turned this OFF once with disasterous consequences.
> > > 
> > > In fact, I think DHCP is turned on for both the ActionTec 
> modem and 
> > > the DLink router.  I think it is Dynamic DHCP assigned for both 
> > > modem and router.
> > > 
> > > 
> > > IMPORTANT UPDATE on the DLink (LAN) subnet:
> > > 
> > > I have changed the DLink router subnet over to 10.x.x.x.  
> I did this 
> > > last night.
> > > 
> > > 
> > > Q:  I assume also that it is set to automatically acquire Default 
> > > Gateway and DNS server information from the ISP
> > > 
> > > A:  Not sure.  Seems right.
> > > 
> > > 
> > > 
> > > <<<<<Looking forward to actually getting to the VNC bit!! ;-)>>>>>
> > > 
> > > Me too!
> > > 
> > > 
> > > Right before I went to bed last night I ran the GoToMyVNC.com 
> > > against my IP address (205.208.x.x) and Display 0 thru 9 were NOT 
> > > OPEN.  :(
> > > 
> > > 
> > > 
> > > Thanks,
> > > 
> > > 
> > > Tom
> > > 
> > > 
> > > 
> > > 
> > > 
> > > -----Original Message-----
> > > From: Peter Coulter [mailto:peter "at" coulter.ndo.co.uk]
> > > Sent: Friday, March 26, 2004 1:21 PM
> > > To: Tom Knowlton; vnc-list "at" realvnc.com
> > > Subject: RE: router config to work with VNC
> > > 
> > > 
> > > Tom,
> > > 
> > > You'd need to say a bit more about the ActionTec modem before I 
> > > could answer questions on it. Even the model name would allow a 
> > > manual to be dragged up online. But your modem must be slightly 
> > > different to mine because if I type my external
> > > (dynamic) IP address into IE it doesn't take me to the modem;
> > > the only way I can access the modem via IE is using 192.168.0.1. 
> > > 
> > > Also, when it comes to mind: Is the modem a DHCP server? 
> The D-link 
> > > router will be a DHCP server by default and you cannot 
> have two DHCP 
> > > servers on the same subnet or they will likely be issuing 
> clashing 
> > > IP addresses. So if both devices are DHCP servers the 
> facility would 
> > > have to be disabled in one or other of them. To me it makes more 
> > > sense to have the router as the DHCP sever and thus 
> deactivate the 
> > > facility in the modem (if such a facility exists there).
> > > 
> > > It's rarely enough just to quote an IP address; usually 
> at least the 
> > > sub-net mask but also the default gateway are necessary 
> to get the 
> > > whole picture (although in most small/home LANs the former can be 
> > > guessed with almost complete certainty and the latter with a fair 
> > > degree of
> > > certainty!) So when you say that you have moved the D-link
> > > over to the IP address 192.168.0.2 I assume you mean you've 
> > > set the router IP address in the LAN-side set-up pages. I 
> > > assume also that it is set to automatically acquire Default 
> > > Gateway and DNS server information from the ISP; that will be 
> > > how the D-link directs traffic that is not bound for its own 
> > > sub-net out onto the Internet, I don't think it really cares 
> > > too much about the fact it is going through the modem, it 
> > > just dumps stuff out the default gateway as its only known 
> > > route to the outside world.
> > > 
> > > I must say there are things that get me excited ... but routers 
> > > ain't one of 'em! :-) Looking forward to actually getting 
> to the VNC 
> > > bit!! ;-)
> > > 
> > > Peter
> > > 
> > > 
> > > > -----Original Message-----
> > > > From: Tom Knowlton [mailto:tom "at" buyersfund.com]
> > > > Sent: 26 March 2004 03:54
> > > > To: coulter; vnc-list "at" realvnc.com
> > > > Subject: RE: router config to work with VNC
> > > > 
> > > > 
> > > > UPDATE:
> > > > 
> > > > I moved my DLink router IP over to 192.168.0.2
> > > > 
> > > > Now when I type 192.168.0.2 it takes me to the DLink Router
> > > config (as
> > > > expected)
> > > > 
> > > > When I type in my static IP address (205.208.XXX.XXX) it
> > takes me to
> > > > my ActionTec broadband modem config....is that right?
> > > > 
> > > > Now, there is still another IP address, isn't there?  The
> > > one that my
> > > > DLink is using to connect to my ActionTec modem.
> > > > That is the part I am not sure about.
> > > > 
> > > > So I need an answer to that part, plus I still need to get VNC
> > > > working.
> > > > 
> > > > But the good news is that for the FIRST TIME....I can get to the
> > > > firewall config for both my DLink Router and my ActionTec 
> > broadband
> > > > modem WITHOUT having to disconnect any cables.  I'm so excited.
> > > > 
> > > > -----Original Message-----
> > > > From: coulter [mailto:coulter "at" coulter.ndo.co.uk]
> > > > Sent: Thursday, March 25, 2004 6:36 AM
> > > > To: vnc-list "at" realvnc.com
> > > > Cc: Tom Knowlton
> > > > Subject: RE: router config to work with VNC
> > > > 
> > > > 
> > > > As noted by other posters your diagram is incomplete.
> > > > 
> > > > However what if does tell me is that you have two devices -
> > > namely the
> > > > Actiontec modem and the D-link router - with the same 
> IP address 
> > > > namely 192.168.0.1 (you say it in words in some of the
> > > supporting text
> > > > but it is not shown in the diagrams).
> > > > 
> > > > First you can't have two devices with the same IP 
> address and not
> > > > expect problems. Plus your Dlink must be getting very
> > > confused -- it's
> > > > supposed to be a router, by definition a router routes! Usually 
> > > > between different sub-nets!! :-) But as it is seeing 
> the same IP 
> > > > address 192.168.0.1 on each of its port (both WAN-side and 
> > > > LAN-side) it's likely not a happy bunny.
> > > >   
> > > > For me the easiest way to solve this is to put the modem and the
> > > > router on different sub-nets as follows: leave the  modem on 
> > > > 192.168.0.1 (the 192.168.0.0/255.255.255.0 sub-net) and put
> > > the router
> > > > on a completely different sub-net. So that it is very
> > clear which is
> > > > which make them very different, thus I suggest putting
> > the router on
> > > > the 10.0.0.0 / 255.255.255.0 (although really anything 
> other than
> > > > 192.168.0.x will do). The router being the DHCP server 
> > then dishes
> > > > out LAN IP address to this revised sub-net. The very first
> > > > consequence of this will be that you can access both 
> > devices via IE
> > > > using their now different IP addresses without having to be
> > > > disconnect the devices every now and again! ;-)
> > > > 
> > > > Once you get this difficulty between modem and router
> > sorted you may
> > > > be able to progress with VNC issues. Set up
> > port-forwarding on each
> > > > device now as appropriate.
> > > >  
> > > > Good luck,
> > > > P
> > > > 
> > > > > --__--__--
> > > > > 
> > > > > Message: 14
> > > > > Subject: RE: router config to work with VNC
> > > > > Date: Wed, 24 Mar 2004 17:13:21 -0700
> > > > > From: "Tom Knowlton" <tom "at" buyersfund.com>
> > > > > To: "Scott C. Best" <sbest "at" best.com>, <vnc-list "at" realvnc.com>
> > > > > 
> > > > > Does this diagram help any?  (until I can get Kaboodle up
> > > > and running)
> > > > > 
> > > > > 
> > > > > http://www.knowltonfamily.com/config_port_forward.gif