You could use a sniffer in promiscuous mode. pypcap -- or something like. This will record every packet seen by your network card. Whether is will work depends on whether you are on a true braodcast network.
if a box is on and completely inactive you'll never see it, but most boxes do something. Windows boxes positively shout about there presence :-) baically this is pasive nmap, nmap will try to open a tcp or udp connection on every machine. your going to generat a lot of traffic. If you've got access to the boxes enabling ICMP and using that is the proper way. Sandeep Arya wrote: > Hello dear > > I had sent my earlier queries regarding same topic. However just to be > more specific this time.. > > I just wann try to detect that if there are some ip address in a list of > some ip address alive or not. > > How can i do this? > > Shall i try to connect them and check that my connection is working or > not? If working than means alive .... (connection based) > > SHalle i send some buffer value (whatever) to socket using sendto(...) > and then checking for return value? (Connectionless) > > Well for me it doesnot matter that i should have connection or > connectionless.. I just wannn know who are alive in my LAN? > > This application will be for my computers in lan. not for maganetwork. > > LAN will have just some bridges and computers. > > i need to detect tham all.. > > however i doesnot matter that all of them replies or not. I just wann > know that atleast some of them reply. Rest i will take care of... > > > Sandeep > > _________________________________________________________________ > NRIs, does your family in India need money urgently? > http://creative.mediaturf.net/creatives/icicibank/ICICI_NRI_ERA.htm Open > an ICICI Bank NRI savings A/c > -- http://mail.python.org/mailman/listinfo/python-list
