Do the majority of IP cameras support RTSP?
Also, apart from using uPnP and Bonjour are there any other ways of detecting IP cameras on the local network?
Related
I have one network connection on my Macbook Pro. It is configured by my ADSL modem by DHCP. That modem is on 192.168.1.1 . I also have a cable modem connected to the network. I switched its DHCP server off. It is on 192.168.1.254 .
How can I connect to a URL using the cable modem?
I think I have to set up a vlan which I then can use by setting the localAddress option of http.request. Am I right?
Ok, I found out that it is not possible with one ethernet interface. So I bought another usb to ethernet adapter. Now one is configured by DHCP. The other is configured by hand. In node I use the localAddress to set which interface to use.
I have a device firmware which runs on Ubuntu operating system. And the device has Ethernet connectivity and will connected on the network.
Now i need provide these two functionalities on the device
ICMP ping client - so that a device can ping the other devices on the network.
DNS client - for faster hostname to IP resolution instead of going to DNS server all the time.
I am trying to find how can i provide these features ? Do i need to implement these features or i can get some ready made source code or libraries which i can integrate with the existing code and get the features working.
Thanks in advance.
Sagar
we have an embedded Linux device that primarily uses the Ethernet to communicate. We also allow access via the USB port, to support this our device has a g_ether Linux gadget driver that creates a virtual ethernet port for both our device and the clients host. A DHCP server assigns the client an IP address saving them having to configure this them selves, while the device has a fix IP address. I believe this is much the same as how Android does its tethering
This all works fine until a client wants to use 2 or more devices at once. Both devices come up as distinct network interfaces on the clients machine, but both devices have the same IP address meaning you cannot target the host specifically! A smaller problem is that there is a slight possibility that both devices might assign the clients "distinct" interface the same ip address and cause a conflict there too, but I am less concerned about that as the IP address is random since the DHCP server assigns the address based on the MAC address and g_ether randomly generates this, so a retry should fix the issue (not ideal, but will do)
I would like to know if anyone else has faced a similar problem, and if so how they solved it ?
We have developed a device that is connected to our clients network and we would like to be able to get its ip or set the ip without knowing its ip.
The device has a Linux OS.
We can save the device MAC Address before giving it to customers. We can program a service to broadcast the device IP and MAC Address to a certain IP or port/socket. We can listen to a certain port/socket for commands. Is this the right direction? Should we investigate in other network protocols other than TCP/IP?
We have seen this feature in hardware/device manufacturers provide a CD with a software that can locate their devices on a network even if they have been newly added to the network without network or ip configuration.
Best regards,
Hussam Kazah
Using propriety broadcasting protocol is a very common technique for detecting devices on network without knowing it's name.
However there's a better option:
UPNP, is an excellent protocol for achieving your goals.
libupnp can get you started in no time.
There's a standard protocol called DHCP which allows a network device to make a broadcast request for its IP address. This protocol is widely used by network appliances. On the other hand you may scan your local network for all connected devices using ARP (address resolution protocol) using for example arp-scan utility.
If i am publishing a NSNetService in (Bonjour based NetWork) Iphone Application,which net Work will use in my application
If you use the high-level NSNetService methods, (on both OS X and iOS) the NSNetService will be published through any network interface that supports multicast packet transport. Since bluetooth supports this, you should be able to broadcast mDNS data over a PAN, although service advertising and discovery may be slower than on a normal IP network. Have a read through this for more information.