The setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE, ifname, sizeof (ifname))
Works by chance when ifname = eth0 or eth1 but fails with any name that has more than 4 characters. In my case I used udev to rename interface to eth_wan and eth-lan and it fails miserably. The correct line is setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE, ifname, strlen (ifname) + 1) Otherwise it is a good idea to bind to listen only on the internal side. -- eric -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
