Port Forwarding on Time Capsule for Security Camera

I have a VMAX4 (Digital Watchdog) security camera system. It was working fine until my Time Capsule went on fritz. I had to restore Time Capsule and now I'm not able to view my cameras on internet. I called DW and they said I have to activate Port Forwarding for 80, 9010, and 9011. I tried this but doubt I did it correctly. Keep getting message that "The DHCP range you have entered conflicts with the WAN IP address of your Airport wireless device." DHCP ending address 192.168.0.2. Have tried changing the 2 to every option without success. I'm using Brighthouse internet and and Time Capsule. Any ideas? Thank you.

iMac, Mac OS X (10.6.7)

Posted on Jun 2, 2011 3:11 PM

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12 replies

Jun 4, 2011 9:37 AM in response to bfrank3

Port forwarding is independent of DHCP configuration, except that it's useful to assign a static IP address to a device involved in port forwarding so that the forwarding configuration is stable. In which panel are you entering DHCP information? Unless your Time Capsule is "behind" another router, an IP address such as 192.168.0.2 is a LAN address, not a WAN address.

Jun 5, 2011 5:25 AM in response to William-Boyd-Jr

Thank you for responding. I know less than nothing about networks so I need all the help I can get. Don't even know difference between WAN and LAN.


The guy at digital watchdog told me I had to enable port forwarding for 80 (or 8245), 9010, and 9011. I've tried to figure out how to do this but haven't been successful. I know it can work because it was working perfectly before I restored my Time Capsule. Anyway, my TC is hooked up directly to the cable modem (which is also a router I do not use for routing) I received from Brighthouse. In Airport Utility I clicked on manual setup->Internet->internet connection->share a public IP address->update....and then I get the message: "Correct the 2 problems below before updating this AirPort wireless device. The DHCP range you have entered conflicts with the WAN IP address of your AirPort wireless device. DCHP Beginning Address, 192.168.0.2. That's as far as I get.

Jun 5, 2011 7:19 AM in response to bfrank3

The DHCP range you have entered conflicts with the WAN IP address of your AirPort wireless device.

This is almost always a message that indicates that you have the TC connected to a nother rotuer or gateway. Take a look at the Brighthouse "modem" to see if it has 3-4 Ethernet ports on the back.


If yes, then the correct configuration for the TC is Bridge Mode to avoid having two routers in series on the network....which would cause the type of conflict in the error message.


AirPort Utility > Manual Setup > Internet icon > Connectiion Sharing = Off (Bridge Mode) would be correct for the TC


It is your Brighthouse gateway (combination modem/rotuer in one box) that is acting as the main router on the network, so that is the device that will need to be configured for port mapping....not the TC.

Jun 5, 2011 9:44 AM in response to bfrank3

bfrank3 wrote:


Don't even know difference between WAN and LAN.

WAN ("wide area network") is, roughly speaking, everything outside your house or, at least, everything "beyond" the first router. LAN ("local area network") is everything on the "near" side of your router. LAN IP addresses will generally start with 10.0, 172.16, or 192.168. A WAN IP address will generally start with something else.

the cable modem (which is also a router I do not use for routing)

To elaborate on the good advice from Bob Timmons, from what you described that cable modem probably is configured for routing. For a simple home network having two devices acting as routers can cause problems. You should choose which device will be your router and have it do the port mapping. The other one should be configured into "bridge mode".

Jun 5, 2011 11:02 AM in response to William-Boyd-Jr

Thank you for your helpful answers and explanations. The TC is in bridge mode and the port mapping is enabled on the cable modem. Unfortunately, still not working. Frustrating because it was working before and only thing different is that I had to restore my TC. I have a weird setup because of the way my house is constructed.


1. Cable modem connected only to TC via ethernet cable.


2. TC used a source for wireless internet and as router for a few different things (Sonos, Apple TV, etc.).


3. Airport Extreme set up to wirelessly extend my TC wireless network. Have the security cam DVR connected to the AE with ethernet cable. Checked ethernet cable by plugging into laptop and I was able to connect to internet using only that cable so I believe the AE is configured correctly for my purposes.


If you don't have any other ideas I'll call Digital Watchdog again and beg them for help. It's one of those "problem must be on your end" situations.

Jun 5, 2011 11:18 AM in response to bfrank3

If you have double checked to make sure that the TC is in Bridge Mode, that's really all you can do in relation to the TC on the network. If you poked around a bit in AirPort Utility, you noticed that the Port Forwarding or Port Mapping function is not available when the TC is configured as a bridge.


In Bridge Mode, it can act as a wireless access point, but it is simply passing through the DHCP and NAT information that is being provided by your cable modem/router.

Jun 23, 2011 2:29 PM in response to bfrank3

I'm curious about your setup and opinions on it. Ive been researching surveillance options and am now looking at the VMAX as well with a combination of IP or PoE outdoor cameras, MacBook, macbook pro. Looking at replacing my router with airport extreme and connecting the dvr to an airport express. I don't understand enough yet to know if this idea can be implemented. Anyway I'll probably keep an eye on this thread!

Jan 19, 2012 7:06 PM in response to bfrank3

Bfrank, I'm having a very similar problem to the one you were having except I'm using a Verizon router. I have my time capsule set up in bridge mode and the router was forwarding my ports until I had to reset the router and lost my settings. What IP address do you use and how do you find it? Any advice you have on how you fixed your problem would be much appreciated. Thanks!

Feb 27, 2013 1:58 PM in response to bfrank3

i am having the same problem i have a DW flex it was working fine with the cisco and ports were forwarding correctly becuse i could see my cams from my iphone

installed the apple extreme and went to port mapping

set up 9010,85,8245 in the UDP and TCP fields to my DW dvr like i had it on the old router (took screen shots of the cisco settings) and it wont work

i have a time warner cable modem dhcp is disabled and some other settings are set to make it just a modem

all i did to it was remove the mac from my cisco and add the apple mac

rebooted all devices and was able to get the Internet working

there is a IPv6 firewall setting tab but it looks like it wants a IPv6 ip vs a IPv4

any ideas?

thanks

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Port Forwarding on Time Capsule for Security Camera

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