diff --git a/pcap-bpf.h b/pcap-bpf.h
index 84196df..20ddc3a 100644
--- a/pcap-bpf.h
+++ b/pcap-bpf.h
@@ -37,7 +37,7 @@
  *
  *      @(#)bpf.h       7.1 (Berkeley) 5/7/91
  *
- * @(#) $Header: /tcpdump/master/libpcap/pcap-bpf.h,v 1.34.2.10 2006-07-25 21:37:41 gianluca Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/pcap-bpf.h,v 1.34.2.11 2006-07-27 21:06:17 gianluca Exp $ (LBL)
  */
 
 /*
@@ -625,7 +625,14 @@ struct bpf_version {
  * More documentation on Arinc 429 can be found at
  * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
  */
-#define DLT_A429			184
+#define DLT_A429                184
+
+/*
+ * Arinc 653 Interpartition Communication messages.
+ * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
+ * Please refer to the A653-1 standard for more information.
+ */
+#define DLT_A653_ICM            185
 
 /*
  * Controller Area Network (CAN) v. 2.0B packets.
@@ -634,7 +641,7 @@ struct bpf_version {
  * More documentation on the CAN v2.0B frames can be found at
  * http://www.can-cia.org/downloads/?269
  */
-#define DLT_CAN20B				190
+#define DLT_CAN20B              190
 
 
 /*
diff --git a/pcap.c b/pcap.c
index af0b30e..3358819 100644
--- a/pcap.c
+++ b/pcap.c
@@ -33,7 +33,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.88.2.12 2006-07-19 20:59:14 gianluca Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.88.2.13 2006-07-27 21:06:17 gianluca Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -383,6 +383,7 @@ static struct dlt_choice dlt_choices[] = {
  	DLT_CHOICE(DLT_JUNIPER_VP, "Juniper Voice PIC"),
  	DLT_CHOICE(DLT_A429, "Arinc 429"),
  	DLT_CHOICE(DLT_CAN20B, "Controller Area Network (CAN) v. 2.0B"),
+    DLT_CHOICE(DLT_A653_ICM, "Arinc 653 Interpartition Communication"),
 	DLT_CHOICE_SENTINEL
 };
 
diff --git a/savefile.c b/savefile.c
index 75d4e02..62fea4f 100644
--- a/savefile.c
+++ b/savefile.c
@@ -30,7 +30,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.126.2.16 2006-07-19 20:59:15 gianluca Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.126.2.17 2006-07-27 21:06:18 gianluca Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -450,7 +450,14 @@ static const char rcsid[] _U_ =
  * More documentation on Arinc 429 can be found at
  * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
  */
-#define LINKTYPE_A429		184
+#define LINKTYPE_A429           184
+
+/*
+ * Arinc 653 Interpartition Communication messages.
+ * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
+ * Please refer to the A653-1 standard for more information.
+ */
+#define LINKTYPE_A653_ICM       185
 
 /*
  * Controller Area Network (CAN) v. 2.0B packets.
@@ -459,7 +466,7 @@ static const char rcsid[] _U_ =
  * More documentation on the CAN v2.0B frames can be found at
  * http://www.can-cia.org/downloads/?269
  */
-#define LINKTYPE_CAN20B		190
+#define LINKTYPE_CAN20B         190
 
 static struct linktype_map {
 	int	dlt;
@@ -678,6 +685,9 @@ static struct linktype_map {
 		/* Controller Area Network (CAN) v2.0B */
 		{ DLT_CAN20B,				LINKTYPE_CAN20B },
 
+		/* Arinc 653 Interpartition Communication messages */
+		{ DLT_A653_ICM,         LINKTYPE_A653_ICM },
+
 	{ -1,			-1 }
 };