diff --git a/src/iodined.c b/src/iodined.c
index 0941d32..787fd75 100644
--- a/src/iodined.c
+++ b/src/iodined.c
@@ -571,6 +571,8 @@ tunnel_tun(int tun_fd, int dns_fd)
 		userid = find_user_by_ip6(header6->ip6_dst);
 	}
 
+	pritnf("tunnel_tun() - userid = %d", userid);
+
 	if (userid < 0)
 		return 0;
 
@@ -1768,6 +1770,8 @@ handle_full_packet(int tun_fd, int dns_fd, int userid)
 			touser = find_user_by_ip6(hdr->ip6_dst);
 		}
 
+		printf("handle_full_packet() - touser = %d, version = %d", touser, hdr->ip_v);
+
 		if (touser == -1) {
 			/* send the uncompressed packet to tun device */
 			write_tun(tun_fd, out, outlen, hdr->ip_v);
diff --git a/src/tun.c b/src/tun.c
index c2dd384..3a8753c 100644
--- a/src/tun.c
+++ b/src/tun.c
@@ -365,6 +365,7 @@ close_tun(int tun_fd)
 int 
 write_tun(int tun_fd, unsigned char *data, size_t len, char version)
 {
+	printf("write_tun() - version = %d", version);
 #if defined (FREEBSD) || defined (DARWIN) || defined(NETBSD) || defined(WINDOWS32)
 	data += 4;
 	len -= 4;