diff --git a/Glossary.md b/Glossary.md
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@@ -1,3 +1,7 @@
+IPv6 Address: An IPv6 address is a 128-bit identifier used to uniquely identify a device on an IPv6 network, written in hexadecimal and separated by colons (e.g., 2001:db8::1).
+
+VLAN(Virtual Local Area Network): A VLAN is a logical subdivision of a physical network that groups devices together based on function or department, allowing them to communicate as if they were on the same physical network, even if they are not.
+
 Unique Local Unicast Adressen: Private IPv6 addresses used for communication within a single organization or site. They are not routable on the global internet. Prefix: fd00::/8.
 
 Global Unicast Adressen: Public IPv6 addresses that are globally routable on the internet. They are assigned by IANA/ISPs and are used for direct communication across networks. Prefix example: 2000::/3.
@@ -10,6 +14,8 @@ ACL(Access Control List): A set of rules used to control network traffic and res
 
 DHCPv6(Dynamic Host Configuration Protocol for IPv6): A protocol that automatically assigns IPv6 addresses and configuration settings to devices on a network.
 
+Stateful DHCPv6: A method where a DHCPv6 server centrally assigns and manages IPv6 addresses and additional configuration information (like DNS), similar to DHCP in IPv4.
+
 SLAAC(Stateless Address Autoconfiguration): SLAAC is an IPv6 feature that allows devices to automatically generate their own IP address using router advertisements, without needing a DHCP server.
 
-OSPFv3(Open Shortest Path First version 3): A routing protocol used in IPv6 networks to find the best path for data between routers.
+OSPFv3(Open Shortest Path First version 3): A routing protocol used in IPv6 networks to find the best path for data between routers.
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