[ https://issues.jboss.org/browse/JGRP-1804?page=com.atlassian.jira.plugin.... ] Bela Ban updated JGRP-1804: --------------------------- Description: After an ifdown / if up cycle, sending of multicast messages over mcast_sock fails with an IOException (no such device). Sending unicast datagram packets works. SOLUTION: Catch the IOException on the send and set the interface again ({{MulticastSocket.setInterface()}}). This was confirmed to work. Perhaps count the number of failures and only reset the interface when the count exceeds a threshold was: After an ifdown / if up cycle, sending of multicast messages over mcast_sock fails with an IOException (no such device). Sending unicast datagram packets works. SOLUTION: Catch the IOException on the send and set the interface again ({{MulticastSocket.setInterface()}}). This was confirmed to work. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira