sudo grep max_member /etc -iR
/etc/sysctl.conf:net.ipv4.igmp_max_memberships=4
/etc/firestarter/sysctl-tuning:if [ -e /proc/sys/net/ipv4/igmp_max_memberships ]; then
/etc/firestarter/sysctl-tuning:  echo 1 > /proc/sys/net/ipv4/igmp_max_memberships