https://github.com/ntruchsess/arduino_uip/pull/122

Author: reaper7

UIPServer.cpp

@@ -26,6 +26,12 @@ UIPServer::UIPServer(uint16_t port) : _port(htons(port))
 {
 }
 
+//added function to change port on the fly
+void UIPServer::setport(uint16_t port)
+{
+  _port=htons(port);
+}
+
 UIPClient UIPServer::available()
 {
   UIPEthernetClass::tick();

UIPServer.h

@@ -32,6 +32,7 @@ class UIPServer : public Server {
   size_t write(uint8_t);
   size_t write(const uint8_t *buf, size_t size);
   using Print::write;
+  void setport(uint16_t _port);  //added function to change port on the fly
 
 private:
   uint16_t _port;