Networking Question

[fundmark19]

I am terrible when it comes to networking so I am in need of some help as I can't figure it out on my own the past two nights.

My setup

Shaw Cisco router in bridge mode - Airport Extreme Router - 3 devices

I keep getting a possible double NAT error on my router and Airvideo configuration.

Airvideo I have setting clicked to automatically map Port. This setting only seems to work when the Airport Extreme is in Bridge mode as well.

I have an Laview 960h home surveillance cameras that I am trying to hook up. I can see them on my desktop LAN client but I cannot for the life of me figure out how to get everything set up for remote viewing, mainly the iOS app that seems very straight forward. In order to attempt port mapping I need to enabld DCHP/NAT to share a public IP. However the moment I do that I can't access Airvideo anymore and then I get the double NAT error on the router. Here is link to system http://laviewusa.com/complete-survei...v-kdv1402b6bp/

The ports needed for the surveillance system are 80,8000,8554. The port Airvideo runs on if I don't select automatic Map is 45631.

Can someone please help me out and getting all of this hooked up! The surveillance system comes with no networking instructions and says it is supposed to be straight forward.

****Well it turns out I am an idiot and had the wrong app download. I can now see my live feed while I am on wifi but cannot see the feed while on 3g. If I was to guess it would be because I am using the local IP address of 192.168.0... and not an external IP address. How would I go about setting it up for external?***

[psyang]

Without knowing the specifics of your various network devices, here's some general info that might help.

On most lans, you should only have one device that has DHCP turned on. This is typically your router (in your case, your Airport since the Cisco is not acting as a router anymore). Ensure all other devices have DHCP disabled.

If you can specify an IP address on any device that you will want to view from an external IP, do that now as well. Figure out what IP range your Airport will use for DHCP - let's say it's 192.168.0.1 to 192.168.0.100. Then pick an ip address outside that range like 192.168.0.200, and specify that as the static ip for your device. Note these addresses.

Next, port mapping should generally only be done to expose a device that's inside your LAN to the outside world. As such, the port mapping should be done on the device that is the "gateway" between your external IP address and your LAN. Again, in this case, this should be your Airport device. Turn off any other device's automatic port mapping.

To do port mapping on your Airport, you will need to log in to the Airport device, and find an option to do port mapping. Then you will need to expose the required ports (80, 8000, 8554, and 45631, from the sounds of it), and map them to their respective devices (the static ips you noted above).

When mapping ports, you might also need to specify TCP or UDP - if that info isn't available from the device you are mapping to, expose both, test that you can view the device from an external IP (ie. through 3G), then remove TCP and/or UDP and retest to figure out which one is required. In some cases you will need both, but you really only want to open up as much as you need, no more.

Hopefully this helps. Good luck!

[fundmark19]

Originally Posted by psyang

On most lans, you should only have one device that has DHCP turned on. This is typically your router (in your case, your Airport since the Cisco is not acting as a router anymore). Ensure all other devices have DHCP disabled.

So I should enable just DHCP and not the DHCP/NAT setting?

If you can specify an IP address on any device that you will want to view from an external IP,

I will see if I can setup a custom IP on the Video PVR

Next, port mapping should generally only be done to expose a device that's inside your LAN to the outside world. As such, the port mapping should be done on the device that is the "gateway" between your external IP address and your LAN. Again, in this case, this should be your Airport device. Turn off any other device's automatic port mapping.

Does device in the case include programs? Such as airvideo and torrent programs I believe use auto port mapping. Or do you mean just hardware like the cisco that is in bridge mode I would assume can't portmap anymore.

Thanks for the reply. I have a couple more questions above in red and will try and tackle it again tonight

[CKPThunder]

I think I am missing some something here. You said that you have a Shaw Cisco router that is set in bridge mode (Basically just working as an internet modem). You then said that your airvideo only seems to work when your Airport was also in bridge mode. If this is the case, what device are you using that is acting as the router on your home network?

[fundmark19]

Originally Posted by CKPThunder

I think I am missing some something here. You said that you have a Shaw Cisco router that is set in bridge mode (Basically just working as an internet modem). You then said that your airvideo only seems to work when your Airport was also in bridge mode. If this is the case, what device are you using that is acting as the router on your home network?

I assume it is the airport extreme still. Even in bridge mode wifi and everything still works fine. That is what is confusing me. Here is the selection I currently have chosen

Spoiler!

[Rathji]

Originally Posted by fundmark19

I assume it is the airport extreme still. Even in bridge mode wifi and everything still works fine. That is what is confusing me. Here is the selection I currently have chosen

That assumption is incorrect. Bridge mode means no NAT, no firewall, and you are essentially open to the world.

Your problem is, you have 2 device doing NAT on your network (when the Airport is not in bridge mode). You need to figure out what they are. My guess is that the Shaw router isn't bridged, or you have another piece of equipment that is connected in between this stuff that you have not mentioned.

[fundmark19]

Originally Posted by Rathji

That assumption is incorrect. Bridge mode means no NAT, no firewall, and you are essentially open to the world.

Your problem is, you have 2 device doing NAT on your network (when the Airport is not in bridge mode). You need to figure out what they are. My guess is that the Shaw router isn't bridged, or you have another piece of equipment that is connected in between this stuff that you have not mentioned.

There is nothing else connected it goes Cisco - Airport - Devices (desktop, playstation, and video surveillance) I will talk to shaw

Having it on bridge mode would explain why airvideo would work outside of my network since there is nothing stopping it. Thanks for that information

[CKPThunder]

Originally Posted by fundmark19

There is nothing else connected it goes Cisco - Airport - Devices (desktop, playstation, and video surveillance) I will talk to shaw

Having it on bridge mode would explain why airvideo would work outside of my network since there is nothing stopping it. Thanks for that information

Ok, that makes more sense.

I'm guessing your Shaw router is actually acting as a router and you can leave it the way it is and just add the port forwarding that psyang mentioned on your Shaw router instead.

It sounded strange as well since you mentioned that you were receiving a 192.168.x.x address which is common with Cisco/Linksys/Dlink routers I believe. I think the Airport routers give out a 10.x.x.x address instead.

If you have a bunch of apple products and apps, I would probably go with making your shaw router a modem (bridge mode) and make your Airport the home router since a lot of apple stuff auto configures with the Airport router.

[fundmark19]

Originally Posted by CKPThunder

Ok, that makes more sense.

I'm guessing your Shaw router is actually acting as a router and you can leave it the way it is and just add the port forwarding that psyang mentioned on your Shaw router instead.

It sounded strange as well since you mentioned that you were receiving a 192.168.x.x address which is common with Cisco/Linksys/Dlink routers I believe. I think the Airport routers give out a 10.x.x.x address instead.

If you have a bunch of apple products and apps, I would probably go with making your shaw router a modem (bridge mode) and make your Airport the home router since a lot of apple stuff auto configures with the Airport router.

Ok that makes sense. While I was trying to get everything to work the IP address did change to 10.0.1... so I am going to guess something happened with the shaw router to kick it out of bridge mode.

I will keep everyone updated

[fundmark19]

Well thank goodness for twitter! Shaw has confirmed my router was no longer in bridge mode and has now been switched back. This should hopefully make everything nice and easy setting it up this evening.

[fundmark19]

Ok I have tried to get everything going but I have run into the same problem as last night. I can see the video stream on the internal network but not my external I am not sure what I am missing.

My IP address assigned to the DVR is 10.0.1.2
My IP address for the router is 10.0.1.1

here is my port mapping I have done it for the ports 80,8000,8554


Here are my dvr settings


When I go to check if ports are open they say no still. I can access airvideo on 3g and wifi. My airplay to apple tv's have stopped working though not sure if that is happening from all of this or separate issue. I am sure I am doing something wrong as I am terrible at this any help is appreciated.

[CKPThunder]

What version of Airport Utility are you using and what is the firmware version of your Airport Extreme? Is this the new ac version of the Airport Extreme?

As for your Apple TV. Did you check to see what IP address it has? Maybe it still has the old Cisco IP attached to it since it hasn't renewed its lease when the Airport became the primary router?

[fundmark19]

Originally Posted by CKPThunder

What version of Airport Utility are you using and what is the firmware version of your Airport Extreme? Is this the new ac version of the Airport Extreme?

As for your Apple TV. Did you check to see what IP address it has? Maybe it still has the old Cisco IP attached to it since it hasn't renewed its lease when the Airport became the primary router?

It is not the new AE generation 3 dual band AE it is running version 7.6.4 airport utility is 5.6.1. That is a good idea about the apple tvs I would guess DNS is messed up from when I was running plex on the old IP details

[CKPThunder]

I can't remember but I think with Airport Utility 5.6.x, you may need to reserve your static IP via MAC address. I am not sure how you reserved the IP of your DVR on the router.

EDIT: Ya I found the link. Try this, https://discussions.apple.com/docs/DOC-3414

[fundmark19]

well that article opened the ports but still isn't connecting on 3g. It has to be using the wrong ip address.

Since the 10.0.1.2 is an internal IP there is no way I should be able to connect to that externally through 3g correct?

[fundmark19]

Well that was a simple fix. All I had to do was find my external IP from an IP site and use it. Now everything works just fine!

Thanks for the help cp