[ https://issues.jboss.org/browse/JGRP-1925?page=com.atlassian.jira.plugin.... ] Robert Bissett commented on JGRP-1925: -------------------------------------- --- begin --- Using version 3.4.7.Final, FixedMembershipToken#authenticate uses this code to get the address portion of a source address: String sourceAddressWithPort = src.toString(); String sourceAddressWithoutPort = sourceAddressWithPort.substring(0, sourceAddressWithPort.indexOf(":")); With ipv6, my source address is "fe80:0:0:0:20c:29ff:fe4d:e0c4%0:7800" and so sourceAddressWithoutPort becomes "fe80". --- end --- Bela suggested: "Yes, this won't work with IPv6. Instead of indexOf(), lastIndexOf() should probably be used. You could submit a PR to get this fixed, but on master." -- This message was sent by Atlassian JIRA (v6.3.15#6346)