diff --git a/sys/netinet/in_pcb.h b/sys/netinet/in_pcb.h
--- a/sys/netinet/in_pcb.h
+++ b/sys/netinet/in_pcb.h
@@ -624,6 +624,13 @@
 #define INP_2PCP_MASK	(INP_2PCP_BIT0 | INP_2PCP_BIT1 | INP_2PCP_BIT2)
 #define INP_2PCP_SHIFT		18         /* shift PCP field in/out of inp_flags2 */
 
+/* inp_flags2 description for use with printf(9) %b identifier. */
+#define	INP_FLAGS2_BITS	"\20" \
+    "\11INP_RECVFLOWID\12INP_RECVRSSBUCKETID" \
+    "\13INP_RATE_LIMIT_CHANGED\14INP_ORIGDSTADDR" \
+    "\22INP_2PCP_SET\23INP_2PCP_BIT0\24INP_2PCP_BIT1" \
+    "\25INP_2PCP_BIT2"
+
 /*
  * Flags passed to in_pcblookup*(), inp_smr_lock() and inp_next().
  */
diff --git a/sys/netinet/in_pcb.c b/sys/netinet/in_pcb.c
--- a/sys/netinet/in_pcb.c
+++ b/sys/netinet/in_pcb.c
@@ -3076,6 +3076,9 @@
 	db_print_indent(indent);
 	db_printf("inp_flags: 0x%b\n", inp->inp_flags, INP_FLAGS_BITS);
 
+	db_print_indent(indent);
+	db_printf("inp_flags2: 0x%b\n", inp->inp_flags2, INP_FLAGS2_BITS);
+
 	db_print_indent(indent);
 	db_printf("inp_sp: %p   inp_vflag: 0x%b\n", inp->inp_sp,
 	    inp->inp_vflag, INP_VFLAGS_BITS);