adding description of new GbE MAC address generation

diff --git a/trb3/GbEGettingStarted.tex b/trb3/GbEGettingStarted.tex
index 67673bf60f39ff8db1730ee7f506d8ab6b310aa4..02a5265c9facbaf259447389862d2420a3392424 100644 (file)
--- a/trb3/GbEGettingStarted.tex
+++ b/trb3/GbEGettingStarted.tex
@@ -11,10 +11,17 @@ packets once per second. With any network monitoring tools (ex. Wireshark) one
 have to capture such packet and check the source MAC address. This address has
 to be added to the DHCP configuration on Slow Control server PC. MAC address
 is generated basing on the unique ID assigned to each FPGA and a constant
-part: 02:00:BE:UNIQUE$\_$ID(31 downto 8) 
+part: 02:00:BE:UNIQUE$\_$ID(31 downto 8).
 
+Starting from 26/11/2015, the MAC address is generated as: DA:7A:nU:UU:UU:UU, 
+were 'n' is the number of the interface, counting from 0 to 3 (Typical TRB3: 3, 
+TRB3sc: 0, TRB3 second link: 2) and U are Bits 35..8 of the unique ID. I.e. a 
+unique id 0x820000050dec0a28 corresponds to (TRB3sc) DA:7A:05:0D:EC:0A - that is
+all relevant bits of the unique id are contained in the MAC address.
+
+To configure your PC, depending on your system configuration:
 \begin{itemize*}
-\item Open /etc/dhcpd.conf and add an entry specifying hostname and MAC address
+\item Open /etc/dhcpd.conf and add an entry specifying hostname and/or IP and MAC address
 \item Open /etc/hosts and add an entry specifying hostanme and an selected IP address
 \item Restart DHCP daemon
 \end{itemize*}