I am sorry not sure which forum is the most appropriate to post this query - please feel free to move it if a better forum can handle this query. Looking at the connected ip addresses on my home network I came across some that are not clear to me. The usual connected devices are shown as 192.XXX - However today I am noticing entries that start with 224, 239 and 255. While 255 seems to be the subnet mask, I am not sure what the other two entries relate to. also running arp -a on my pc, it's interesting that the results do not necessarily match, not sure if there is some caching happening but even using arp -d the subsequent results are not identical
This might be handy for address ranges and subnet questions: Subnet Masks Reference Table (www.cloudaccess.net) Arp questions get more complicated than I could address with the information provided.
thank you Jack - this provided me with some context especially re the ip ranges starting with 224. Apparently this refers to multicast addresses used in streaming.
