Hello out there, I got an interesting but challenging problem. I want to create a daemon-process, which runs on a host with several NICs. If the daemon gets a request from one of the interfaces, it should, amongst others, send back the IP-address and/or MAC-address, interface-name... of the interface from which the request came. And only of that interface. No infos about local-interfaces and so on. My approach so far was to invoke ioctl with the SIOCGIFCONF-request and collect all informations about every active interface on the host. But I need at least one unique identifier of the interface from which the request came. With the interface-name for exeample I can call the/ /SIOCGIFADDR-request to get the IP-address. How can I achive this. Has anybody an idea. Thanks in advance. -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html