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IP Security Cameras

Discussion in 'Security Alarms' started by FishyThoughts, Oct 8, 2007.

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  1. New kind o' network job landed in my hands;
    I'm helping a client put an IP camera in each of his stores;
    3 don't work & 3 do (1 just needed to reset the camera & port after a
    power failure).

    The remaining stores have ATT/ma bell's netopia routers (setting into
    bridge mode),
    which drop over to linksys routers; non-wireless 4 ports w/ a wan i/o.
    The prior tech hadn't requested a block of static IP's, which I just
    did Friday, after a LONG run-around to confirm that I was an
    authorized person to modify the account....
    _____________
    This is where I need help;
    Now I need to poke a hole thru the linksys,
    to allow the camera(s) to send out to the net, using a new static IP.

    Any hints, warnings, or provisos would be greatly appreciated!
    Thanks kindly!
    Amanda
     
  2. Frank Olson

    Frank Olson Guest

    The Linksys Router I use will allow a single IP network address "open"
    access on WAN. You have to configure the router as non-DHCP, then
    assign a static IP for each device on the LAN.
     
  3. Matt Ion

    Matt Ion Guest

    You don't have to disable DHCP for everything on the LAN... just give
    the one machine a hard-coded IP outside of the DHCP server's pool range.

    Either that, or use a router that will let you reserve IPs for for
    specified machines on the LAN.

    Personally, I've never had anything but problems with Linksys routers in
    these types of installations - the LAN IP of a machine should never
    change unless the machine is offline for longer than the DHCP lease
    period, and even then, it should normally get the same IP back unless
    another client has taken it after it becomes available. Every site I've
    set up that used a Linksys, I've had to hard-code the DVR's IP because
    the router's DHCP server would randomly change the DVR's address... and
    none of the Linksys units (at least not the cheap-ass ones that everyone
    seems to buy) support reserved IPs.
     
  4. Matt Ion

    Matt Ion Guest


    All you should need to do, is forward the appropriate port to the
    camera's IP address on the LAN. You can do as Frank suggests, and set
    the camera as a DMZ (demilitarized zone, where it's basically wide open
    to the world), but most simply use a built-in webserver for remote
    access, so all you generally need is port 80.

    What you might have a problem with, is if your ISP blocks port 80 (some
    do, at least on residential lines), or if something else in the company
    (such as a standard webserver) is using port 80. In that case, most
    routers will allow you to forward one outside port to a different inside
    port... so, for example, you could tell the router to forward port 800
    on the WAN, to port 80 on the camera's IP. Then you'd just add a ":800"
    to the web address of that store's hostname (for example,
    http://branch1.some-store.com:800)

    On the other hand, if the cameras are set to PUSH their feeds out, you
    shouldn't need to do anything on most routers, as they don't generally
    block outgoing connections unless specifically told to do so.

    The other consideration, if you need to connect in to the camera from
    outside, is that you don't want your camera's LAN IP changing randomly,
    which I've seen some Linksys routers do. Most times, it should never
    happen, but some routers' DHCP servers have a "static IP" feature
    (really, it's a reserved IP) that will let you assign a specific IP to a
    specific machine in perpetuity. Barring that you can always hard-code
    an IP on the camera, giving it an address outside the router's pool
    range (ie. if the router's DHCP is set to assign client IPs from
    192.168.1.50 to 192.168.1.100, set your camera at something like
    192.168.1.101).
     
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