please do route -n
on the UML from where you were running the listener. you might notice that it does not have any routes to handle the class D address that is being opened by the listener.c program. run the following command to add a default route pointing to the default gateway for that particular machine. route add default gw nearest_router's_IP_address run the route -n command and make sure that you have a default route installed. listener should work now. also, as handout pointed out.. please change the IGMP version as well. -----Original Message----- From: Toheed Aslam [mailto:[EMAIL PROTECTED] Sent: December-02-08 8:08 PM To: Muthucumaru Maheswaran Subject: Assignment 6 Hi, We were trying to make UML listen for multicast messages (or at least send IGMP report msg to router) by using given "listener.c" program. But it fails with error saying "setsockopt: No such device". We were wondering if we need to provide the router's interface address explicitly or setsockopt() would do it internally, based on the IP multicast address? -Toheed _______________________________________________ gini mailing list gini@cs.mcgill.ca http://mailman.cs.mcgill.ca/mailman/listinfo/gini
