Posts with Tag: Access Point

IEEE ICC in Sydney, Austrlia

I attended and presented at IEEE ICC 2014 in Sydney, Australia. I presented a paper entitled, “[A Ut ...

Creating a Bluetooth Access point (NAP) in Ubuntu 11.10

A Bluetooth NAP is similar to a Wi-Fi access point. In this case, we will be using NAP to share an I ...

Most Recent Post

Multicast Ipv4 and Ipv6 in Java / Kotlin

I recently ran into a peculiarity of multicast in Java / Kotlin. I was using a MulticastSocket: [https://docs.oracle.com/javase/8/docs/api/java/net/MulticastSocket.html](https://docs.oracle.com/javase/8/docs/api/java/net/MulticastSocket.html) and trying to ensure that it winds up bound to either an Inet4Address or Inet6Address. It turns out that even if I did something like: ``` val multicastSocket = MulticastSocket(InetSocketAddress("0.0.0.0", MULTICAST_DEFAULT_PORT)) assert(multicastSocket.localAddress is Inet4Address) ``` The assertion could fail. Similarly if I did: ``` val multicastSock ...