1 files changed, 2 insertions, 1 deletions
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.h b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.h
index 0b0ff1c06a..bea4931efb 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.h
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.h
@@ -2,7 +2,7 @@
   This EFI_PXE_BASE_CODE_PROTOCOL and EFI_LOAD_FILE_PROTOCOL.
   interfaces declaration.
 
-  Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
 
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -65,6 +65,7 @@ typedef struct _PXEBC_VIRTUAL_NIC   PXEBC_VIRTUAL_NIC;
 #define PXEBC_DEFAULT_HOPLIMIT        64
 #define PXEBC_DEFAULT_LIFETIME        50000    // 50 ms, unit is microsecond
 #define PXEBC_UDP_TIMEOUT             30000000 // 3 seconds, unit is 100nanosecond
+#define PXEBC_DAD_ADDITIONAL_DELAY    30000000 // 3 seconds
 #define PXEBC_MTFTP_TIMEOUT           4
 #define PXEBC_MTFTP_RETRIES           6
 #define PXEBC_DHCP_RETRIES            4        // refers to mPxeDhcpTimeout, also by PXE2.1 spec.