@aster1x, i'm not really sure what i did as i'm not a network guy BUT maybe someone here can help explain. here is the walk through
my network is on a verizon so i have the actiontec mi424 router.
local network is 192.168.1.1, 255.255.255.0
the nvr has ip 192.168.1.200, 255.255.255.0, 192.168.1.1
it then internally seems like its using 192.168.254.1
SO
my cameras are 192.168.254.2, 255.255.255.0, 192.168.1.1 (this piece for gateway sounds like its wrong since the cameras need to talk to the nvr not my network so that should be updated to 192.168.254.1)
THEN i have the latest him 7608 firmware 3.3.4 and it has virtual host which sounds like from the above is doing the ip forwarding on/off. so turn that on.
so now you should be able to easily access your cameras using 192.168.254.2 OR 192.168.1.200:65001 where the 6500x and x is the camera number in my case 2,3,4,5,6.
this is all great but then you want to have the cameras independently access the internet to send emails and lookup ntp info. so after much playing around and with lots of suggestions on this thread here is what i just randomly came across (suggestion from a friend was to try putting both networks on a 255.255.0.0 subnet and here is what i seem to have done that works)
on my fios router went into the my network tab (icon), then on the left side i clicked on network connections which brought me to a screen with
[TABLE="width: 100%"]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID"][TABLE="width: 100%"]
[TR]
[TD] [/TD]
[TD="width: 100%"][TABLE="width: 100%"]
[TR]
[TD]
[/TD]
[TD="width: 100%"] Network (Home/Office)[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
[/TD]
[TD="class: GRID"]
Connected[/TD]
[TD="class: GRID"]
[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID"][TABLE="width: 100%"]
[TR]
[TD] [/TD]
[TD="width: 100%"][TABLE="width: 100%"]
[TR]
[TD]
[/TD]
[TD="width: 100%"] Ethernet/Coax[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
[/TD]
[TD="class: GRID"]
Connected[/TD]
[TD="class: GRID"]
[/TD]
[/TR]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID"][TABLE="width: 100%"]
[TR]
[TD] [/TD]
[TD="width: 100%"][TABLE="width: 100%"]
[TR]
[TD]
[/TD]
[TD="width: 100%"] Wireless Access Point[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
[/TD]
[TD="class: GRID"]
Connected[/TD]
[TD="class: GRID"]
[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID"][TABLE="width: 100%"]
[TR]
[TD] [/TD]
[TD="width: 100%"][TABLE="width: 100%"]
[TR]
[TD]
[/TD]
[TD="width: 100%"] Broadband Connection (Ethernet/Coax)[/TD]
[/TR]
[/TABLE]
[/TD]
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[/TABLE]
[/TD]
[TD="class: GRID"]
Connected[/TD]
[TD="class: GRID"]
[/TD]
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[TR="bgcolor: #E0E5F1"]
[TD="class: GRID"][TABLE="width: 100%"]
[TR]
[TD] [/TD]
[TD="width: 100%"][TABLE="width: 100%"]
[TR]
[TD]
[/TD]
[TD="width: 100%"] WAN PPPoE[/TD]
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you then click on the top most one and you get the next screen which has a button for settings, press the settings button and you get this
[TABLE="width: 90%"]
[TR]
[TD="colspan: 2"][TABLE="width: 100%"]
[TR="bgcolor: #E0E7F7"]
[TD="class: GRID_NO_RIGHT, colspan: 2"]
General[/TD]
[/TR]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
Status:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]
Connected[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
When should this rule occur?:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]Always[/TD]
[/TR]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
Network:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]Broadband ConnectionNetwork (Home/Office)DMZ[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
Connection Type:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]Bridge[/TD]
[/TR]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
Physical Address:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]00:7f:28:db:c9:5a[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
MTU:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"][TABLE="width: 100%"]
[TR]
[TD]AutomaticAutomatic by DHCPManual[/TD]
[TD="width: 100%"] 1500[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD="colspan: 2"][TABLE="width: 100%"]
[TR="bgcolor: #E0E7F7"]
[TD="class: GRID_NO_RIGHT"]
Internet Protocol[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]No IP AddressObtain an IP Address AutomaticallyUse the Following IP Address[/TD]
[/TR]
[TR="bgcolor: #E0E5F1"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
IP Address:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]
...[/TD]
[/TR]
[TR="bgcolor: #F1F3F9"]
[TD="class: GRID_NO_RIGHT, width: 50%"]
Subnet Mask:[/TD]
[TD="class: GRID_NO_LEFT, width: 50%"]
...[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
so the subnet was 255.255.255.0 i changed it to 255.255.0.0 and then added a router of 192.168.254.0 255.255.255.0 192.168.1.200 metric 2 and saved. somehow it now lets my cameras talk to the outside (though the plugandplay feature on them still doesn't work so it doesnt auto set the port forwarding on my device but i think they may need to be physically connected for that to happen?)
if anyone has thoughts i'm open and welcome any comments on what this did and if there is a better way to do it.