Hello! In first, sorry for my very bad English! (I use a translator French to English for the next of this message) I have to look at the description of protocol ICMP under Linux #man ICMP It explains that one can decontaminate the send of all requests ICMP_ECHO sent at an address of broadcast. With this intention it is necessary to go in the directory: #cd /proc/sys/net/ipv4 Next, it is necessary to modify the file: Icmp_echo_ignore_broadcasts Then put the value at one Next, I all the same tried to start again the following services: -network -smb -xinetd But, the taking into account of the modification was effective only at the time of the restarting of the server. While hoping that the easy way too tardily did not arrive, spend a good afternoon! TibO For information, the message "invalid ICMP type 3, code 3 error ..." According RFC 792 : type 3 seems "Destination Unreachable Message" code 3 seems "Port unreachable"