Bugzilla – Attachment #1753: Fix for "IpL4Protocol not declared in this scope" error in ipv6-linux.cc for bug #1825
#define IPV6_LINUX_H
#include "ns3/ipv6.h"
#include "ns3/ipv4.h"
#include "ns3/ipv6-routing-protocol.h"
#include "ns3/ipv6-pmtu-cache.h"