C :: Linked List - Adding Nodes

I wrote function to add to elements in the list, but when I call printList function it returns me empty list ! I'm new with linked list in C

Output:

Empty list
List is empty add element at the begining
New node with packet num 245
List is not empty add element at the end
New node with packet num 486

Linked list: Empty

Main:

Code:

int main(){
struct node * start ;
start = NULL;
int i;
/*Check if list is empty*/
if(start == NULL){
printf("Empty list

[Code]...