Ticket #6736: ipv4.patch

../src/add-ons/kernel/network/protocols/ipv4/multicast.cpp

@@ -61 +61 @@
 MulticastGroupInterface<Addressing>::Drop()
 {
     fAddresses.Clear();
+    Addressing::LeaveGroup(this);
     fFilterMode = kInclude;
     return B_OK;
 }