From Kevin Steves: in the client FQDN option:

[tcpdump] / bootp.h

diff --git a/bootp.h b/bootp.h
index d348379ba91394d6d2a1c523f0a8ea264b69d72d..e78e10bb0fe350023d94a6c420bd336d65892395 100644 (file)
--- a/bootp.h
+++ b/bootp.h
@@ -1,4 +1,4 @@
-/* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.15 2003-07-01 19:16:06 guy Exp $ (LBL) */
+/* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.15.4.1 2007-01-29 20:56:00 guy Exp $ (LBL) */
 /*
  * Bootstrap Protocol (BOOTP).  RFC951 and RFC1048.
  *
@@ -218,3 +218,10 @@ struct cmu_vend {
 
 /* v_flags values */
 #define VF_SMASK       1       /* Subnet mask field contains valid data */
+
+/* RFC 4702 DHCP Client FQDN Option */
+
+#define CLIENT_FQDN_FLAGS_S    0x01
+#define CLIENT_FQDN_FLAGS_O    0x02
+#define CLIENT_FQDN_FLAGS_E    0x04
+#define CLIENT_FQDN_FLAGS_N    0x08