networking - DHCP Pool Range / IP-Camera Setup

06
2014-04
  • Unheilig

    Lately I have been trying to set up a IP-Camera for friends wirelessly.

    I realized on their router its DHCP pool range is from 192.169.2.100 - 192.168.2.200.

    But when I changed the IP address of the IP-Camera to (static) ex. 192.168.2.5 it will still work and be connected for a few hours. I wonder why this is still working because it is obviously out of the range of what their DCHP Pool allows.

    Hours later the IP-Camera would no longer be connected / discovered by the router. But it baffles me that it could be connected in the first place with IP being out of range.

    I am not using Windows Networking Tab to configure the static IP Address for the IP-Camera, because the installation CD claims to do that without. Have not been successful setting it up in their place, although I managed to do so at my home with their camera.

    Their router is on IP 192.168.2.2, by the way.

    Any help / pointer would be much appreciated.

  • Answers
  • PsychoData

    DHCP ranges are just the Dynamically allocated ranges. My bet is that their network is Using 192.168.2.1/24 addressing. or The network 192.168.2.0 with a subnet mask of 255.255.255.0 (same thing just two ways of saying it) So, when you give them an address of .2.5 It is STILL probably a valid address, just statically allocated. My Guess (cant say anything definite) is that something else is trying to fight with this device for that IP and so neither of them work.

    Try turning off the cameras and seeing if anything will respond to those .2.5 type addresses (statically allocated, not DHCP) maybe they left something else at that address and forgot about it.

    Also, if you can give me your subnet mask I can confirm my suspicions about the IP addressing Scheme. The DHCP range of 2.100-2.200 would seem to support it (since it rules out most normal subnets) but confirming never hurts


  • Related Question

    networking - Trouble setting up DHCP with WRN2000v2 and GS108 network switch
  • jschoen

    I have the GS108 Netgear 8 port Gigabit network switch and the WRN2000v2 Netgear wireless router. The problem I am having is that anything conneted through the Gigabit switch is not being assigned an IP address through DHCP. If I connect directly to the router it will assign an IP. I originally had a Linksys Wireless G router that used these same switches, but recently swapped it out, since I was having problems with the wireless. I decided to go with the Netgear since I had been pleased with the Gigabit switch I had purchased, and figured it would be the least headache to swap in.

    So here is what I know:

    • the lights between the router and the gigabit switch indicate a 100MB connection (1 light)
    • the lights between the laptop and the gigabit switch indicate a gigabit connection (2 lights)
    • Tried assigning a static ip to the laptop, and that did not work either
    • Swapped out cables, still no change
    • Connected laptop wired directly to the router(it assigns the ip address)
    • Connected laptop to gigabit switch that is connected to the router(it does not assign an ip address)
    • Double checked the router configuration page, and DHCP is turned on

    So I figure I am missing something, and hope someone could point me in the right direction.


  • Related Answers
  • jschoen

    So after some more troubleshooting I found the problem. I needed a crossover cable between the router and the switch. Apparently the OLD Linksys router that worked had some type of automatic feature that did this, while the NEW Netgear router did not have this feature.

    So in assuming things get better over time, I assumed the Netgear router, that was probably made a good two years after the Linksys router would have the same feature. I was wrong, and wasted a good bit of time in figuring this out. I have basic networking knowledge, and new that you used to always have to use a crossover cable between switches, but glossed over it since the old one worked with standard cables. Lesson learned.