CHANGES.md and internet doc

Author: GallegosAlberto

CHANGES.md

@@ -23,6 +23,7 @@ This file is a best-effort approach to solving this issue; we will do our best b
 
 * Pcap helpers now use ``LinkType`` enum contained in the ``iana`` namespace (``iana-link-type-numbers.h``).
 * (network) After the introduction of the `iana::` enumerations for L2 protocol numbers, the old ones (e.g., `Ipv4L3Protocol::PROT_NUMBER`) have been deprecated.
+* Centralized IANA numbers list in ``network/utils`` is now used instead of the constexpr ``PROT_NUMBER`` found in the definition of multiple protocols.
 
 ### Changes to build system
 

src/internet/doc/internet-stack.rst

@@ -130,7 +130,7 @@ The actual registration is done
 with a statement such as follows::
 
      RegisterProtocolHandler( MakeCallback(&Ipv4Protocol::Receive, ipv4),
-                              iana::Ieee802Numbers::IPV4, 0);
+                              iana::ieee802numbers::IPV4, 0);
 
 The Ipv4L3Protocol object is aggregated to the Node; there is only one such
 Ipv4L3Protocol object. Higher-layer protocols that have a packet to send down to
@@ -140,7 +140,7 @@ pointer, as follows::
   Ptr<Ipv4L3Protocol> ipv4 = m_node->GetObject<Ipv4L3Protocol>();
   if (ipv4 != 0)
     {
-      ipv4->Send(packet, saddr, daddr, iana::Ieee802Numbers::IPV4);
+      ipv4->Send(packet, saddr, daddr, iana::ieee802numbers::IPV4);
     }
 
 This class nicely demonstrates two techniques we exploit in |ns3| to bind