subnet

I'm attempting to send multichannel audio over WiFi from one server to multiple client computers using UDP broadcast on a private network. I'm using software called Pure Data, with a UDP broadcast tool called netsend~ and netreceive~. The code is here: http://www.remu.fr/sound-delta/netsend~/ To cut a long story short, I'm able to achieve sending 9 channels to one client computer in a point-to-point network, but when I try to do broadcast to 2 clients (haven't yet tried more), I get no sound. I can compress the audio and send 4 channels compressed (about 10% size of uncompressed) over UDP

So I have ~12600 subnets: eg. 123.123.208.0/20 and an IP. I can use a SQLite Database or an array or whatever There was a similar question asked about a month ago, however I am not looking for checking one IP against one subnet but a bunch of subnets (obviously the most efficient way, hopefully not O(total subnets)) :) How can I check that the IP is one of in one of these subnets, I need true or false not the subnet if that helps optimisation. There are similar subnets in the current list eg.: (actual extract) 123.123.48.0/22 <-- not a typo 123.123.48.0/24 <-- not a typo 123.123.90.0/24 123

I wanted to get the IP address and the subnet mask. Now the IP part is done, however I couldn't find any socket function that would return a structure with the subnet mask in it. Does a socket function exist, that returns it in a structure? Thanks! In windows using IPHelper. #include <winsock2.h> #include <iphlpapi.h> #include <stdio.h> #include <stdlib.h> #pragma comment(lib, "IPHLPAPI.lib") #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) #define FREE(x) HeapFree(GetProcessHeap(), 0, (x)) /* Note: could also use malloc() and free() */ int __cdecl main() { PIP_ADAPTER_INFO pAdapterInfo;

I know I can get new IP address by going to Elastic IPs --> Allocate new address but by doing this I always get IPs in different subnet range. I want to IPs with same subnet. I have two ec2 instance, Actually I want a 2 new IP address with in same subnet range! Am trying to join two instances which is in same ZONE and same VPC, but their primary private IPs are in different subnet, so this is the issue! I Have added a secondary Private IP directly to both instances with same subnet range ( by not using Elastic IP and then associating them) , So is there a way I can make this secondary Private

I have a task to complete in C#. I have a Subnet Mask: 255.255.128.0. I need to find the number of bits in the Subnet Mask, which would be, in this case, 17. However, I need to be able to do this in C# WITHOUT the use of the System.Net library (the system I am programming in does not have access to this library). It seems like the process should be something like: 1) Split the Subnet Mask into Octets. 2) Convert the Octets to be binary. 3) Count the number of Ones in each Octet. 4) Output the total number of found Ones. However, my C# is pretty poor. Does anyone have the C# knowledge to help?

What library can I use to check if an IP address is in a given subnet? I could find libraries like the Apache Commons SubnetUtils ( SubnetUtils.SubnetInfo.isInRange ) but many do not support IPv6 yet. edazdarevic's CIDRUtils supports both IPv4 and IPv6. The example does not mention boolean isInRange(String ipAddress), but it is implemented! Another option is java-ipv6 , but it does not support IPv4 and requires JDK7 . Use spring-security-web 's IpAddressMatcher . Unlike Apache Commons Net, it supports both ipv4 and ipv6. import org.springframework.security.web.util.matcher.IpAddressMatcher; ..

I've searched SO for help but could'nt find a answer to my question. Situation: I need to convert a "/NN" subnet mask notation (think IPTABLES) to a 0.0.0.0 cisco notation. NN are the number of "1" in the submask, from the lowest octet to the higher. Each octet are 8 bit integers. Possible solution: Make a array of 32 "0" and filling the last NN digits with "1", then group in 4 octets and converting to int... a /23 mask should be like 0.0.1.255. My question is how to do it in .NET... i never used binary manipulation and conversion. Can you guys help me with this solution? UPDATE - Stephen has

Any have any good code for converting a IPv6 address string into an integer? Converting IPv4 seems to be fairly easy, with the one format. However, IPv6 has several different formats to show an address: XXXX:XXXX:XXXX:XXXX:: XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX XXXX:XXX:XXXX:0:0:XXXX:XXX:XXXX XXXX:XXX:XXXX::XXXX:XXX:XXXX ::ffff:XXXX:XXX (IPv4 in v6 format) ::ffff:###.#.#.### (also valid IPv4 in v6 format) I'd like to be able to take one of these strings and translate it into an INTEGER for IP-to-network matching, and allow for any of these formats as the input. Ended up rolling my own. Also