On Tue, 11 Dec 2001, Amit Kucheria wrote: > ip addr is for ip or ipv6. I was looking for link layer addresses. Maybe > i should have mentioned that in the subject line before. > > Maybe 'ip link' is what i am looking for. I just glanced at the code. Yes. ip link show dev eth0 ip l l dev eth0 > So does > ioctl(s, SIOCGIFINDEX, &ifr) > get the list of all interfaces ??? No, it gets the ifindex for one interface given a name. To get a list, either use netlink or ip l l or check in /proc/net/dev. > Let me rephrase my requirement. > > I should be able to get the link-layer address of an interface by > specifying the interface name ie. eth0, eth1 etc. > (mac address for ethernet) Use SIOCGIFHWADDR. See man 7 netdevice. > And this interface might not have an ip address when i do this. No matter. Good luck -- Stéphane Doyon <sdoyon@vipswitch.com> - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
