From 061f8a5ee11d9a53ae4821d7193e1a58c0047fed Mon Sep 17 00:00:00 2001
From: Marcel Richter <44291436+MarcelRichter-GitHub@users.noreply.github.com>
Date: Tue, 30 Apr 2024 17:38:04 +0200
Subject: [PATCH] Update MacForwardingTable file reader to include check for
 Multicast

---
 .../linklayer/ethernet/common/MacForwardingTable.cc  | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/inet/linklayer/ethernet/common/MacForwardingTable.cc b/src/inet/linklayer/ethernet/common/MacForwardingTable.cc
index 82ae2db850b..54547dda09f 100644
--- a/src/inet/linklayer/ethernet/common/MacForwardingTable.cc
+++ b/src/inet/linklayer/ethernet/common/MacForwardingTable.cc
@@ -339,10 +339,14 @@ void MacForwardingTable::readForwardingTable(const char *fileName)
             throw cRuntimeError("error in line %d in address table file `%s': interface '%s' not found", lineno, fileName, interfaceName);
         interfaceId = ie->getInterfaceId();
 
-        // Create an entry with address and interfaceId and insert into table
-        AddressEntry entry(vlanId, interfaceId, 0);
-        ForwardingTableKey key(vlanId, macAddress);
-        forwardingTable[key] = entry;
+        if (macAddress.isMulticast()) {
+            addMulticastAddressForwardingInterface(interfaceId, macAddress, vlanId);
+        } else {
+            // Create an entry with address and interfaceId and insert into table
+            AddressEntry entry(vlanId, interfaceId, 0);
+            ForwardingTableKey key(vlanId, macAddress);
+            forwardingTable[key] = entry;
+        }
     }
     fclose(fp);
 }