Merge remote branch 'remotes/kc/karo-tx6q' into karo-tx28-devel

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 2352e3862bfa81f4ad2bca262cc26529ac008fd7..e6ea6fe8d476581d043f3851fb8ee37bd6e32bb6 100644 (file)
--- a/README
+++ b/README
@@ -1705,6 +1705,17 @@ CBFS (Coreboot Filesystem) support
                4th and following
                BOOTP requests:         delay 0 ... 8 sec
 
+- BOOTP Random transaction ID:
+               CONFIG_BOOTP_RANDOM_ID
+
+               The standard algorithm to generate a DHCP/BOOTP transaction ID
+               by using the MAC address and the current time stamp may not
+               quite unlikely produce duplicate transaction IDs from different
+               clients in the same network. This option creates a transaction
+               ID using the rand() function. Provided that the RNG has been
+               seeded well, this should guarantee unique transaction IDs
+               always.
+
 - DHCP Advanced Options:
                You can fine tune the DHCP functionality by defining
                CONFIG_BOOTP_* symbols: