summaryrefslogtreecommitdiff
path: root/networking/udhcp/options.h
diff options
context:
space:
mode:
Diffstat (limited to 'networking/udhcp/options.h')
-rw-r--r--networking/udhcp/options.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/networking/udhcp/options.h b/networking/udhcp/options.h
index 2d9c15f..75087fa 100644
--- a/networking/udhcp/options.h
+++ b/networking/udhcp/options.h
@@ -46,9 +46,9 @@ enum {
#define DHCP_LOG_SERVER 0x07
//#define DHCP_COOKIE_SERVER 0x08 /* "quote of the day" server */
#define DHCP_LPR_SERVER 0x09
-#define DHCP_HOST_NAME 0x0c
+#define DHCP_HOST_NAME 0x0c /* either client informs server or server gives name to client */
#define DHCP_BOOT_SIZE 0x0d
-#define DHCP_DOMAIN_NAME 0x0f
+#define DHCP_DOMAIN_NAME 0x0f /* server gives domain suffix */
#define DHCP_SWAP_SERVER 0x10
#define DHCP_ROOT_PATH 0x11
#define DHCP_IP_TTL 0x17
@@ -61,14 +61,14 @@ enum {
#define DHCP_OPTION_OVERLOAD 0x34
#define DHCP_MESSAGE_TYPE 0x35
#define DHCP_SERVER_ID 0x36 /* by default server's IP */
-#define DHCP_PARAM_REQ 0x37
+#define DHCP_PARAM_REQ 0x37 /* list of options client wants */
#define DHCP_MESSAGE 0x38 /* error message when sending NAK etc */
#define DHCP_MAX_SIZE 0x39
//#define DHCP_T1 0x3a
//#define DHCP_T2 0x3b
-#define DHCP_VENDOR 0x3c /* client's vendor */
-#define DHCP_CLIENT_ID 0x3d /* by default client's MAC addr */
-#define DHCP_FQDN 0x51
+#define DHCP_VENDOR 0x3c /* client's vendor (a string) */
+#define DHCP_CLIENT_ID 0x3d /* by default client's MAC addr, but may be arbitrarily long */
+#define DHCP_FQDN 0x51 /* client asks to update DNS to map its FQDN to its new IP */
#define DHCP_STATIC_ROUTES 0x79
#define DHCP_END 0xFF
/* Offsets in option byte sequence */