SETTING UP CCTV/ IP CAMERA BEHIND ADSL ROUTER
Digital Video recorders (DVR) are used in Security systems of shopping malls
The article assumes that subscriber has broadband ADSL / VDSL
internet service or 3G / EVDO router.
In today’s world security has a very high priority in everyone’s life, you may want
to watch your children in your house from your office, you may want to watch
somebody ill at your house from your office, you may need to keep a track on your
Godown, Office, Construction site, Hotel Reception, Lobby of your building, inside
the lifts, and many other places . A CCTV system based on a DVR is capable to
capture images from many cameras simultaneously and store them for further
reference, DVR’s with IP connectivity also offer you the ability to view all cameras
from distant locations using an internet connection. To start with it is assumed that
you have a fully functional ADSL internet connection with STATIC IP and a fully
functional DVR based security system.
The following is a example and IP addresses used can be modified as per individual
1) Configure BSNL ADSL Modem/router IP to 192.168.1.1 (Default IP)
2) Set DVR IP to 192.168.1.250 Subnet:255.255.255.0. Connect the LAN port of
the DVR to the adsl router along with another PC. (do this on a 4 port
router or use a 8 port 10/100mbps switch to achieve connectivity for your
DVR and PC’s simultaneously) Ping the DVR IP and verify that the DVR is
3) Set Gateway in the DVR to 192.168.1.1
Configure Pri-DNS server as 126.96.36.199 or 188.8.131.52
and Alternate DNS as 184.108.40.206
4) All DVRs also have a setting called “ PORT”, Most of the DVR’s have a
default port setting of “8080” Assuming your DVR also has a “PORT”
setting set to 8080 we now move forward to configure the BSNL ADSL
MODEM / ROUTER to forward request from the WAN to the DVR.
5) To do this, log on to the administration page of the router IP
6) Enter the username “admin” & password “admin” (or whatever that you
7) Go to the section Called “Port Forwarding” this is located under the
subhead of Advanced or NAT in various routers.
8) Create a static LAN client with ID: DVR and IP 192.168.1.250
9) Under port Forwarding or NAT forward WAN port (Public port) 8080 to
Private Port (Internal port) 8080 for IP 192.168.1.250
10) The above setting instructs the router to send all requests on port 8080 from
the Internet to the DVR’s port 8080.
11) Finally save your settings and reboot your router.
12) Test that your internet connection is functioning.
13) Go to another internet connected remote computer open the browser and type
http://yourstaticIPaddress:8080 you should be able to see your cameras.
You can view your DVR by typing the web address in Internet Explorer
Eg: http://192.168.1.250:8080 from local system
http://220.127.116.11:8080 from Internet (thro Static IP)
Note: Check this link to view more about port forwarding http://portforward.com/