----------------------------------------------------------------------------------
-- Company: 
-- Engineer: 
-- 
-- Create Date:    17:03:27 03/16/2011 
-- Design Name: 
-- Module Name:    macb_top - Behavioral 
-- Project Name: 
-- Target Devices: 
-- Tool versions: 
-- Description: 
--
-- Dependencies: 
--
-- Revision: 
-- Revision 0.01 - File Created
-- Additional Comments: 
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;

---- Uncomment the following library declaration if instantiating
---- any Xilinx primitives in this code.
library UNISIM;
use UNISIM.VComponents.all;
-- NOTE all in/out notations are relative to this unit
entity macb_apr20 is
    Port ( 
			  port1_sp : inout  STD_LOGIC_VECTOR (3 downto 0);
			  port2_sp : inout  STD_LOGIC_VECTOR (3 downto 0);
			  port3_sp : inout  STD_LOGIC_VECTOR (3 downto 0);
			  port4_sp : inout  STD_LOGIC_VECTOR (3 downto 0);
			  layer_sp : inout  STD_LOGIC_VECTOR (3 downto 0);
			  layer_trigger : out std_logic ;
           sync_return : in  STD_LOGIC_VECTOR (3 downto 1);
           selector : in  STD_LOGIC_VECTOR (3 downto 0);
           sync_select : out  STD_LOGIC_vector(1 downto 0 );
           clock200_select : out  STD_LOGIC_vector( 1 downto 0 ) ;
			  butis_divide_reset : out std_logic ;
			  butis_divide_s : out std_logic_vector( 2 downto 0 ) ;
			  clock_5 : in std_logic ;
			  sync_5 : in std_logic ;
			  trigger : in std_logic_vector( 3 downto 0 ) ;
           MBS_in : in  STD_LOGIC_VECTOR (3 downto 0);
           MBS_out : out  STD_LOGIC_VECTOR (3 downto 0));
end macb_apr20;

architecture Behavioral of macb_apr20 is
signal port1_spi :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port1_spo :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port1_t :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '1' );
signal port2_spi :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port2_spo :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port2_t :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '1' );
signal port3_spi :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port3_spo :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port3_t :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '1' );
signal port4_spi :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port4_spo :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal port4_t :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '1' );
signal layer_spi :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal layer_spo :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '0' );
signal layer_t :  STD_LOGIC_VECTOR (3 downto 0) := ( others => '1' );
signal seli : integer range 0 to 15 := 0  ;
-- well really
signal MBS_in_n : std_logic_vector( 3 downto 0 ) := "0000" ;
begin
MBS_in_n <= ( not MBS_in);
seli <= conv_integer(not selector) ;
-- MBS signal allocations to sp lines and HDMI pin. This maps to NIM connections
-- 0 :	MBS_clock10 	SP0	13
-- 1 :	MBS_reset		SP1	14
-- 2 :	MBS_reset_rq	SP2	15
-- 3 :	MBS_Trigger		SP3	16
layer_trigger <= trigger(0) or trigger(1) or trigger(2) or trigger(3) ;

-- divider controls set for pass-through
butis_divide_reset <= '1' ; -- for now don't reset ;

process ( seli , MBS_in_n, port1_spi, port2_spi, port3_spi, port4_spi, layer_spi, sync_return ,sync_5  )
-- note : & => concatenate
begin
	case seli is 
	when 0 => --- Master/ Root / MBS / Internal clock
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "00" ; -- select sync from port 1 
		clock200_select <= "00" ; -- select internal 200 MHz oscillator
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,
		
	when 1 => --- Master/ Root / MBS / BuTiS clock and SYNC
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "01" ; -- select sync from external using SMA input 
		clock200_select <= "01" ; -- select external 200 MHz oscillator using SMA input
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,

	when 2 => --- Master/ Branch / MBS / Next layer clock next layer SYNC
		port1_spo <= layer_spi(3) & layer_spi(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= layer_spi(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= layer_spi(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= layer_spi(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <=  '0' & '0' & port1_spi(1) & port1_spi(0) ; -- drive the clock and reset down a layer
		layer_t <= "1100" ; -- just drive the bottom two bits to the "next" port
		sync_select <= "10" ; -- select sync from next_layer 
		clock200_select <= "10" ; -- select clock from next layer
		MBS_out <=  layer_spi(3) & layer_spi(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,

	when 3 => --- Slave / Branch / MBS / Next layer clock and sync
		port1_spo <= layer_spi(3) & '0'  & layer_spi(1) & layer_spi(0);
		port1_t <= "0100" ; -- drive clock, reset, trigger only 
		port2_spo <= layer_spi(3) & '0' & layer_spi(1) & layer_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= layer_spi(3) & '0' & layer_spi(1) & layer_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= layer_spi(3) & '0' & layer_spi(1) & layer_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <=  '0' & '0' & '0' & '0' ; -- drive nothing
		layer_t <= "1111" ; -- just drive nothing down
		sync_select <= "10" ; -- select sync from next layer 
		clock200_select <= "10" ; -- select clock from next layer
		MBS_out <=  layer_spi ; -- map all the signals for monitoring ?
		butis_divide_s <= "000" ; -- s2 is 0 for pass,
		
	when 4 => --- Master/ Root / MBS / BuTiS clock / Internal SYNC / External timestamp reset
		port1_spo <= MBS_in_n(3) & '0' & MBS_in_n(1)  & '0' ;
		port1_t <= "0100" ; -- drive clock, reset, trigger only
		port2_spo <= MBS_in_n(3) & '0' & MBS_in_n(1)  & '0' ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & MBS_in_n(1)  & '0' ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & MBS_in_n(1)  & '0' ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "00" ; -- select sync from port 1 
		clock200_select <= "01" ; -- select external 50 MHz oscillator using SMA input
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & MBS_in_n(1) & sync_5 ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,

	when 5 => --- Master/ Root / MBS / External 50Mhz clock / Internal Sync
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "00" ; -- select sync from port 1 
		clock200_select <= "01" ; -- select external SMA input 
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass through.
			
	when 6 => --- Master/ Root / MBS / External 100Mhz clock / Internal Sync
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "00" ; -- select sync from port 1 
		clock200_select <= "01" ; -- select external SMA input 
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "100" ; -- s2 is 1 for external, 00 for /2.
		
	when 7 => --- Fast NIM input for each FEE / Next layer clock next layer SYNC
		port1_spo <= MBS_in_n(0) & layer_spi(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(1) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(2) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <=  '0' & '0' & port1_spi(1) & port1_spi(0) ; -- drive the clock and reset down a layer
		layer_t <= "1100" ; -- just drive the bottom two bits to the "next" port
		sync_select <= "10" ; -- select sync from next_layer 
		clock200_select <= "10" ; -- select clock from next layer
		MBS_out <=  layer_spi(3) & layer_spi(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,

	when 8 => --- Fast NIM input from Input 3 for each FEE / Next layer clock next layer SYNC
		port1_spo <= MBS_in_n(3) & layer_spi(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <=  '0' & '0' & port1_spi(1) & port1_spi(0) ; -- drive the clock and reset down a layer
		layer_t <= "1100" ; -- just drive the bottom two bits to the "next" port
		sync_select <= "10" ; -- select sync from next_layer 
		clock200_select <= "10" ; -- select clock from next layer
		MBS_out <=  layer_spi(3) & layer_spi(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,
	
	when 9 => --- Master/ Root / Internal clock / sync_returns to NIM
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "00" ; -- select sync from port 1 
		clock200_select <= "00" ; -- select internal 200 MHz oscillator
		MBS_out <=  sync_return(3) & sync_return(2) & sync_return(1) & '0' ;
		butis_divide_s <= "000" ; -- s2 is 0 for pass,

	when 10 => --- Master/ Root / MBS / BuTiS clock /2 and SYNC
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= "0000" ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "01" ; -- select sync from external using SMA input 
		clock200_select <= "01" ; -- select external 200 MHz oscillator using SMA input
		MBS_out <=  MBS_in_n ; -- for testing NIM I/O
		butis_divide_s <= "100" ; --  s2 = 1 and s1,s0 decode to 00=>/2 , 01=>/4, /8 , /16

	when 12 => --- Master/ Root / MBS / BuTiS clock /2 and SYNC
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "01" ; -- select sync from external using SMA input 
		clock200_select <= "01" ; -- select external 200 MHz oscillator using SMA input
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "100" ; --  s2 = 1 and s1,s0 decode to 00=>/2 , 01=>/4, /8 , /16

	when 13 => --- Master/ Root / MBS / BuTiS clock /4 and SYNC
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port3_t <= "0100" ; -- drive clock, reset, trigger only
		port4_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port4_t <= "0100" ; -- drive clock, reset, trigger only
		layer_spo <= ( others => '0' ) ;
		layer_t <= ( others => '1' ) ; -- disable the drive to the "next" port
		sync_select <= "01" ; -- select sync from external using SMA input 
		clock200_select <= "01" ; -- select external 200 MHz oscillator using SMA input
		MBS_out <=  MBS_in_n(3) & MBS_in_n(2) & port1_spi(1) & port1_spi(0) ;
		butis_divide_s <= "101" ; --  s2 = 1 and s1,s0 decode to  01=>/4
		
	when 14 => --- Master/ Root / MBS / BuTiS clock /8 and SYNC
		port1_spo <= MBS_in_n(3) & MBS_in_n(2) & '0' & '0' ;
		port1_t <= "0011" ; -- drive trigger and reset request only
		port2_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;
		port2_t <= "0100" ; -- drive clock, reset, trigger only 
		port3_spo <= MBS_in_n(3) & '0' & port1_spi(1) & port1_spi(0) ;

an 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPOFFER on 192.168.11.3 to d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.3 (192.168.11.99) from d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.3 (192.168.11.99) from d8:80:39:41:d0:05 via p4p1: unknown lease 192.168.11.3.
Jan 31 09:48:40 carme-gsi dhcpd: DHCPACK on 192.168.11.3 to d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPOFFER on 192.168.11.5 to d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPOFFER on 192.168.11.8 to d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.5 (192.168.11.99) from d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPACK on 192.168.11.5 to d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.5 (192.168.11.99) from d8:80:39:41:b4:0b via p4p1: unknown lease 192.168.11.5.
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.8 (192.168.11.99) from d8:80:39:41:d7:cd via p4p1: unknown lease 192.168.11.8.
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.8 (192.168.11.99) from d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPACK on 192.168.11.8 to d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPOFFER on 192.168.11.6 to d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.6 (192.168.11.99) from d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:40 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.6 (192.168.11.99) from d8:80:39:41:d8:20 via p4p1: unknown lease 192.168.11.6.
Jan 31 09:48:40 carme-gsi dhcpd: DHCPACK on 192.168.11.6 to d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.4 to d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.4 (192.168.11.99) from d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.4 (192.168.11.99) from d8:80:39:41:d7:c2 via p4p1: unknown lease 192.168.11.4.
Jan 31 09:48:41 carme-gsi dhcpd: DHCPACK on 192.168.11.4 to d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.7 to d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.7 (192.168.11.99) from d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.7 (192.168.11.99) from d8:80:39:41:b4:16 via p4p1: unknown lease 192.168.11.7.
Jan 31 09:48:41 carme-gsi dhcpd: DHCPACK on 192.168.11.7 to d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d8:2b via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPDISCOVER from d8:80:39:41:d8:2b via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.2 to d8:80:39:41:d8:2b via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.2 (192.168.11.99) from d8:80:39:41:d8:2b via p4p1: unknown lease 192.168.11.2.
Jan 31 09:48:41 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.2 (192.168.11.99) from d8:80:39:41:d8:2b via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPACK on 192.168.11.2 to d8:80:39:41:d8:2b via p4p1
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.3:956 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida03 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.8:675 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida08 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.5:907 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida05 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.6:883 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida06 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.4:985 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida04 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.7:682 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida07 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi rpc.mountd[79344]: authenticated mount request from 192.168.11.2:707 for /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida02 (/home/Embedded/XilinxLinux/ppc_4xx/rfs)
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.121 to d8:80:39:41:d0:05 via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.122 to d8:80:39:41:b4:0b via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.120 to d8:80:39:41:d7:cd via p4p1
Jan 31 09:48:41 carme-gsi dhcpd: DHCPOFFER on 192.168.11.118 to d8:80:39:41:d8:20 via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPOFFER on 192.168.11.119 to d8:80:39:41:d7:c2 via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPOFFER on 192.168.11.123 to d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPOFFER on 192.168.11.123 to d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: Can't create new lease file: Permission denied
Jan 31 09:48:42 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.123 (192.168.11.99) from d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPACK on 192.168.11.123 to d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: Wrote 0 deleted host decls to leases file.
Jan 31 09:48:42 carme-gsi dhcpd: Wrote 0 new dynamic host decls to leases file.
Jan 31 09:48:42 carme-gsi dhcpd: Wrote 8 leases to leases file.
Jan 31 09:48:42 carme-gsi dhcpd: DHCPREQUEST for 192.168.11.123 (192.168.11.99) from d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPACK on 192.168.11.123 to d8:80:39:42:0d:0c via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPOFFER on 192.168.11.124 to d8:80:39:41:b4:16 via p4p1
Jan 31 09:48:42 carme-gsi dhcpd: DHCPOFFER on 192.168.11.125 to d8:80:39:41:d8:2b via p4p1

[root@carme-gsi MIDAS]# tcpdump host aida04 -vvv -s 192 -i p4p1
tcpdump: listening on p4p1, link-type EN10MB (Ethernet), capture size 192 bytes
09:48:41.015348 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 382)
    carme-gsi.bootps > aida04.bootpc: BOOTP/DHCP, Reply, length 354, xid 0x37935d60, Flags [none] (0x0000)
	  Your-IP aida04
	  Server-IP carme-gsi
	  Client-Ethernet-Address d8:80:39:41:d7:c2 (oui Unknown)
	  sname "192.168.11.99"[|bootp]
09:48:41.020188 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 382)
    carme-gsi.bootps > aida04.bootpc: BOOTP/DHCP, Reply, length 354, xid 0x37935d60, Flags [none] (0x0000)
	  Your-IP aida04
	  Server-IP carme-gsi
	  Client-Ethernet-Address d8:80:39:41:d7:c2 (oui Unknown)
	  sname "192.168.11.99"[|bootp]
09:48:41.447747 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has carme-gsi tell aida04, length 46
09:48:41.447758 ARP, Ethernet (len 6), IPv4 (len 4), Reply carme-gsi is-at 00:e0:4c:a1:16:af (oui Unknown), length 28
09:48:41.450602 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 112)
    aida04.38162 > carme-gsi.sunrpc: [udp sum ok] UDP, length 84
09:48:41.450809 IP (tos 0x0, ttl 64, id 1841, offset 0, flags [DF], proto UDP (17), length 56)
    carme-gsi.sunrpc > aida04.38162: [udp sum ok] UDP, length 28
09:48:41.505482 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 112)
    aida04.59139 > carme-gsi.sunrpc: [udp sum ok] UDP, length 84
09:48:41.505648 IP (tos 0x0, ttl 64, id 1895, offset 0, flags [DF], proto UDP (17), length 56)
    carme-gsi.sunrpc > aida04.59139: [udp sum ok] UDP, length 28
09:48:41.508775 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 68)
    aida04.985 > carme-gsi.mountd: [udp sum ok] UDP, length 40
09:48:41.508921 IP (tos 0x0, ttl 64, id 1896, offset 0, flags [DF], proto UDP (17), length 52)
    carme-gsi.mountd > aida04.985: [udp sum ok] UDP, length 24
09:48:41.511947 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 148)
    aida04.985 > carme-gsi.mountd: [udp sum ok] UDP, length 120
09:48:41.512632 IP (tos 0x0, ttl 64, id 1898, offset 0, flags [DF], proto UDP (17), length 88)
    carme-gsi.mountd > aida04.985: [udp sum ok] UDP, length 60
09:48:41.516436 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 68)
    aida04.1004 > carme-gsi.nfs: NFS request xid 1193702076 40 null
09:48:41.516487 IP (tos 0x0, ttl 64, id 1902, offset 0, flags [DF], proto UDP (17), length 60)
    carme-gsi.nfs > aida04.1004: NFS reply xid 1193702076 reply ok 32 null
09:48:46.461884 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has aida04 tell carme-gsi, length 28
09:48:46.464693 ARP, Ethernet (len 6), IPv4 (len 4), Reply aida04 is-at d8:80:39:41:d7:c2 (oui Unknown), length 46

# The format of this file is documented in the dhcpd.leases(5) manual page.
# This lease file was written by isc-dhcp-4.2.5

lease 192.168.11.118 {
  starts 1 2022/01/31 08:48:40;
  ends 1 2022/01/31 08:50:40;
  cltt 1 2022/01/31 08:48:40;
  binding state free;
  hardware ethernet d8:80:39:41:d8:20;
}
lease 192.168.11.120 {
  starts 1 2022/01/31 08:48:40;
  ends 1 2022/01/31 08:50:40;
  cltt 1 2022/01/31 08:48:40;
  binding state free;
  hardware ethernet d8:80:39:41:d7:cd;
}
lease 192.168.11.122 {
  starts 1 2022/01/31 08:48:40;
  ends 1 2022/01/31 08:50:40;
  cltt 1 2022/01/31 08:48:40;
  binding state free;
  hardware ethernet d8:80:39:41:b4:0b;
}
lease 192.168.11.121 {
  starts 1 2022/01/31 08:48:40;
  ends 1 2022/01/31 08:50:40;
  cltt 1 2022/01/31 08:48:40;
  binding state free;
  hardware ethernet d8:80:39:41:d0:05;
}
lease 192.168.11.125 {
  starts 1 2022/01/31 08:48:41;
  ends 1 2022/01/31 08:50:41;
  cltt 1 2022/01/31 08:48:41;
  binding state free;
  hardware ethernet d8:80:39:41:d8:2b;
}
lease 192.168.11.124 {
  starts 1 2022/01/31 08:48:41;
  ends 1 2022/01/31 08:50:41;
  cltt 1 2022/01/31 08:48:41;
  binding state free;
  hardware ethernet d8:80:39:41:b4:16;
}
lease 192.168.11.119 {
  starts 1 2022/01/31 08:48:41;
  ends 1 2022/01/31 08:50:41;
  cltt 1 2022/01/31 08:48:41;
  binding state free;
  hardware ethernet d8:80:39:41:d7:c2;
}
lease 192.168.11.123 {
  starts 1 2022/01/31 08:48:42;
  ends 1 2022/01/31 20:48:42;
  cltt 1 2022/01/31 08:48:42;
  binding state active;
  next binding state free;
  rewind binding state free;
  hardware ethernet d8:80:39:42:0d:0c;
}
server-duid "\000\001\000\001)\211c\037\000\340L\241\026\257";

#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.example
#   see dhcpd.conf(5) man page
#
# 2 days
#default-lease-time 172800;
# 4 days
default-lease-time 345600;
# 8 days
max-lease-time 691200;

option domain-search code 119 = string;

option domain-name "dl.ac.uk";
option domain-name-servers 193.62.115.16, 148.79.80.78;
option netbios-name-servers 148.79.160.89;
option netbios-node-type 8;
option nis-domain "nuclear.physics";
option nis-servers 193.62.115.77;


subnet 192.168.11.0 netmask 255.255.255.0 {
   option subnet-mask 255.255.255.0;
   option broadcast-address 192.168.11.255;
   pool {
 range 192.168.11.118 192.168.11.199;
   }
}

group {
   use-host-decl-names true;
   default-lease-time 3600;
   max-lease-time 14400;

   server-name "192.168.11.99";
   next-server 192.168.11.99;

   host nnrpi1 {
     hardware ethernet dc:a6:32:1d:21:db;
     fixed-address 192.168.11.251;
   }

   host nnrpi2 {
     hardware ethernet b8:27:eb:40:53:e8;
     fixed-address 192.168.11.117;
   }

   host aida01 {
     hardware ethernet d8:80:39:42:02:0c;
     fixed-address 192.168.11.1;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida01";
   }

   host aida02 {
     hardware ethernet d8:80:39:41:d8:2b;
     fixed-address 192.168.11.2;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida02";
   }

   host aida03 {
     hardware ethernet d8:80:39:41:d0:05;
     fixed-address 192.168.11.3;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida03";
   }

   host aida04 {
     hardware ethernet d8:80:39:41:d7:c2;
     fixed-address 192.168.11.4;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida04";
   }

   host aida05 {
     hardware ethernet d8:80:39:41:b4:0b;
     fixed-address 192.168.11.5;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida05";
   }

   host aida06 {
     hardware ethernet d8:80:39:41:d8:20;
     fixed-address 192.168.11.6;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida06";
   }

   host aida07 {
     hardware ethernet d8:80:39:41:b4:16;
     fixed-address 192.168.11.7;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida07";
   }

   host aida08 {
     hardware ethernet d8:80:39:41:d7:cd;
     fixed-address 192.168.11.8;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida08";
   }

   host aida09 {
     hardware ethernet d8:80:39:41:f6:ee;
     fixed-address 192.168.11.9;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida09";
   }

   host aida10 {
     hardware ethernet d8:80:39:41:ba:89;
     fixed-address 192.168.11.10;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida10";
   }

   host aida11 {
     hardware ethernet d8:80:39:41:f6:5a;
     fixed-address 192.168.11.11;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida11";
   }

   host aida12 {
     hardware ethernet d8:80:39:41:cf:ac;
     fixed-address 192.168.11.12;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida12";
   }

   host aida13 {
     hardware ethernet d8:80:39:42:d:15;
     fixed-address 192.168.11.13;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida13";
   }

   host aida14 {
     hardware ethernet d8:80:39:42:d:b;
     fixed-address 192.168.11.14;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida14";
   }

   host aida15 {
     hardware ethernet d8:80:39:41:ee:10;
     fixed-address 192.168.11.15;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida15";
   }

   host aida16 {
     hardware ethernet d8:80:39:41:f6:ed;
     fixed-address 192.168.11.16;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida16";
   }
}


subnet 192.168.12.0 netmask 255.255.255.0 {
   option subnet-mask 255.255.255.0;
   option broadcast-address 192.168.12.255;
   pool {
 range 192.168.12.100 192.168.12.199;
   }
}

group {
   use-host-decl-names true;
   default-lease-time 3600;
   max-lease-time 14400;

   server-name "192.168.12.99";
   next-server 192.168.12.99;

   host aida21 {
     hardware ethernet d8:80:39:41:d8:2a;
     fixed-address 192.168.12.1;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida21";
   }

   host aida22 {
     hardware ethernet 00:04:a3:2a:d0:26;
     fixed-address 192.168.12.2;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida22";
   }

   host aida23 {
     hardware ethernet 00:04:a3:2b:09:ce;
     fixed-address 192.168.12.3;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida23";
   }

   host aida24 {
     hardware ethernet 00:04:a3:2b:09:e8;
     fixed-address 192.168.12.4;
    option root-path "/home/Embedded/XilinxLinux/ppc_4xx/rfs/aida24";
   }

}

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6


192.168.11.251 nnrpi1
192.168.11.1 aida01
192.168.11.2 aida02
192.168.11.3 aida03
192.168.11.4 aida04
192.168.11.5 aida05
192.168.11.6 aida06
192.168.11.7 aida07
192.168.11.8 aida08

/home/Embedded/XilinxLinux/ppc_4xx/rfs  192.168.0.0/255.255.0.0(rw,sync,nohide,no_root_squash)
/home/npg/MIDAS_Releases/23Jan19/MIDAS_200119 192.168.0.0/255.255.0.0(rw,sync,nohide)
/MIDAS_130718 192.168.0.0/255.255.0.0(rw,sync,nohide)

enp0s31f6: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether a4:bb:6d:d1:81:9a  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0x90300000-90320000  

enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.207.142  netmask 255.255.255.0  broadcast 192.168.207.255
        inet6 fd43:525a:5249:4e47:d923:1a54:9ea8:e9b1  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::4194:b06d:5173:1c42  prefixlen 64  scopeid 0x20<link>
        ether a4:bb:6d:d1:7f:ca  txqueuelen 1000  (Ethernet)
        RX packets 15104702  bytes 22030764707 (20.5 GiB)
        RX errors 0  dropped 29  overruns 0  frame 0
        TX packets 2199234  bytes 424845717 (405.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0x90100000-9017ffff  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1157441  bytes 870407343 (830.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1157441  bytes 870407343 (830.0 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.11.99  netmask 255.255.255.0  broadcast 192.168.11.255
        inet6 fe80::74a5:671:a523:2bc5  prefixlen 64  scopeid 0x20<link>
        ether 00:e0:4c:a1:16:af  txqueuelen 1000  (Ethernet)
        RX packets 2283907  bytes 3266470097 (3.0 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 256271  bytes 19134505 (18.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p2: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:e0:4c:a1:16:b0  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:e0:4c:a1:16:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p4: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:e0:4c:a1:16:b2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:9c:18:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0-nic: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 52:54:00:9c:18:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0