[VOL-3610] implementing a fake DHCP server within BBSim

Change-Id: If291a0ca7f78909c3713ef0e6831e381304fc2c9
diff --git a/internal/bbsim/packetHandlers/filters_test.go b/internal/bbsim/packetHandlers/filters_test.go
index c182e82..5be7db2 100644
--- a/internal/bbsim/packetHandlers/filters_test.go
+++ b/internal/bbsim/packetHandlers/filters_test.go
@@ -131,9 +131,8 @@
 }
 
 func Test_IsIncomingPacket_True(t *testing.T) {
-	eth := &layers.IPv4{
-		SrcIP: net.ParseIP("192.168.254.1"),
-		DstIP: net.ParseIP("182.21.0.122"),
+	eth := &layers.DHCPv4{
+		Operation: layers.DHCPOpReply,
 	}
 
 	buffer := gopacket.NewSerializeBuffer()
@@ -143,16 +142,15 @@
 		t.Fatal(err)
 	}
 
-	ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeIPv4, gopacket.DecodeOptions{})
+	ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeDHCPv4, gopacket.DecodeOptions{})
 
 	res := packetHandlers.IsIncomingPacket(ethernetPkt)
 	assert.Equal(t, res, true)
 }
 
 func Test_IsIncomingPacket_False(t *testing.T) {
-	eth := &layers.IPv4{
-		SrcIP: net.ParseIP("182.21.0.122"),
-		DstIP: net.ParseIP("192.168.254.1"),
+	eth := &layers.DHCPv4{
+		Operation: layers.DHCPOpRequest,
 	}
 
 	buffer := gopacket.NewSerializeBuffer()
@@ -162,7 +160,7 @@
 		t.Fatal(err)
 	}
 
-	ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeIPv4, gopacket.DecodeOptions{})
+	ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeDHCPv4, gopacket.DecodeOptions{})
 
 	res := packetHandlers.IsIncomingPacket(ethernetPkt)
 	assert.Equal(t, res, false)