diff --git a/.obsidian/workspace b/.obsidian/workspace
index 31e9432..c38f8c6 100644
--- a/.obsidian/workspace
+++ b/.obsidian/workspace
@@ -88,8 +88,8 @@
   "active": "bc6e8ad9aa0f44c3",
   "lastOpenFiles": [
     "School/Analyse/IPv6.md",
-    "School/Analyse/IPv4.md",
     "School/Analyse/NAT.md",
+    "School/Analyse/IPv4.md",
     "School/Analyse/ICMP.md",
     "School/Analyse/DHCP.md",
     "School/Analyse/Layers/3. Network Layer.md",
diff --git a/School/Analyse/IPv6.md b/School/Analyse/IPv6.md
index 60b4b61..58b6281 100644
--- a/School/Analyse/IPv6.md
+++ b/School/Analyse/IPv6.md
@@ -10,4 +10,7 @@
 
 Most of the mandatory fields of IPv4 header and some of IPv4 options are available trough IPv6 options. (Linked by next header)
 
-IPv6 provides enscript 
\ No newline at end of file
+IPv6 provides encryption and authentication features.
+Routers are not allowed to perform fragmentation.
+NO Checksum calculations, error checking is already implemented in both data link layer and transport layer.
+