--- a/src/node/net-device.cc	Tue Aug 28 11:22:01 2007 +0200
+++ b/src/node/net-device.cc	Tue Aug 28 12:05:35 2007 +0200
@@ -172,7 +172,7 @@
 
 // Receive packet from above
 bool 
-NetDevice::Send(Packet& p, const Address& dest, uint16_t protocolNumber)
+NetDevice::Send(const Packet& p, const Address& dest, uint16_t protocolNumber)
 {
   if (m_isUp)
     {
@@ -192,7 +192,7 @@
 
 // Receive packets from below
 bool
-NetDevice::ForwardUp(const Packet& p, uint32_t param, const Address &from)
+NetDevice::ForwardUp(const Packet& p, uint16_t param, const Address &from)
 {
   bool retval = false;