Hi, Thank you for your quick reply. It works with IP_ADD_MEMBERSHIP. But, I don't understand why we need IP_ADD_MEMBERSHIP before IP_MSFILTER as we can do everything with IP_MSFILTER. I feel IP_MSFILTER is more versatile than other basic API. As you mentioned it does not work with nsrcs=0 but, works with any non-zero value of nsrcs include and exclude filters. Is there any documentation which gives brief description of usage of this API sequence. If I use nsrcs=0 option I still get "Cannot assign requested address". I am using 2.6.9 kernel. I will try with the 2.6.16 kernel and see what happens? BTW, do you know the status of setipv4sourcefilter()/setsourcefilter() API? They are not there in latest release? Thank you With regards bhaskara -----Original Message----- From: David Stevens [mailto:dlstevens@xxxxxxxxxx] Sent: Monday, September 18, 2006 10:30 PM To: Bhaskara Peela Cc: linux-net@xxxxxxxxxxxxxxx Subject: RE: IP_MSFILTER error You must join the group (using IP_ADD_MEMBERSHIP) prior to using IP_MSFILTER. Also, there were some recent bug fixes relating to nsrcs=0 cases, so if you really want to use that, you should use a relatively recent Linux kernel, if you aren't already. Adding the join before the IP_MSFILTER works on my 2.6.17.8 system. Also, note that a filter of {INCLUDE, {}} is equivalent to a "leave group", which is what it does. +-DLS - 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
