On Sun, 7 Jan 1996, Jason Thorpe wrote:

> Run tcpdump on that wire ... what does it say?

machineA (192.168.0.1, 0:0:c0:6c:27:ba)  -- server
machineB (192.168.0.2, 8:0:20:00:05:9a)  -- client

>b le()netbsd -a

tcpdump output at server(FreeBSD 2.1 side);

start....

00:05:12.636988 rarp who-is machineB tell machineB
00:05:12.933595 rarp reply machineB at machineB
00:05:13.014049 machineB.marcam-lm > machineA.tftp: 17 RRQ "C0A80002"
00:05:13.285259 machineA.instl_boots > machineB.marcam-lm: udp 516
00:05:13.577922 machineB.marcam-lm > machineA.instl_boots: udp 4
.
(phase 1, 13312 of netboot)
.
00:05:13.618123 machineA.instl_boots > machineB.marcam-lm: udp 516
00:05:13.626606 machineB.marcam-lm > machineA.instl_boots: udp 4
00:05:13.627558 machineA.instl_boots > machineB.marcam-lm: udp 516
00:05:13.635977 machineB.marcam-lm > machineA.instl_boots: udp 4
00:05:13.636660 machineA.instl_boots > machineB.marcam-lm: udp 4
00:05:13.640709 machineB.marcam-lm > machineA.instl_boots: udp 4
00:05:13.791946 rarp who-is machineB tell machineB
00:05:13.815759 rarp reply machineB at machineB
00:05:13.884802 rarp who-is machineB tell machineB
00:05:13.886837 rarp reply machineB at machineB
00:05:13.941296 machineB.1023 > 255.255.255.255.sunrpc: udp 96
00:05:14.602215 machineA.sunrpc > machineB.1023: udp 68
00:05:14.760564 arp who-has machineA tell machineB
00:05:14.760899 arp reply machineA is-at 0:0:c0:6c:27:ba
00:05:14.761527 machineB.1022 > machineA.655: udp 80
00:05:14.776011 machineA.655 > machineB.1022: udp 80
00:05:14.899214 machineB.1021 > machineA.sunrpc: udp 76
00:05:14.901854 machineA.sunrpc > machineB.1021: udp 28
00:05:14.902792 machineB.1021 > machineA.688: udp 84
00:05:15.463840 machineA.688 > machineB.1021: udp 60
00:05:15.465119 machineB.1021 > machineA.sunrpc: udp 76
00:05:15.466202 machineA.sunrpc > machineB.1021: udp 28
00:05:15.467189 machineB.6 > machineA.nfs: 104 lookup [|nfs]
00:05:15.493623 machineA.nfs > machineB.6: reply ok 128 lookup [|nfs]
00:05:15.497841 machineB.7 > machineA.nfs: 104 read [|nfs]
00:05:15.546094 machineA.nfs > machineB.7: reply ok 132 read [|nfs]
00:05:15.560539 machineB.8 > machineA.nfs: 104 read [|nfs]
.
( 0x2fb - 0x008 lines of output deleted )
.
00:05:22.463603 machineA.nfs > machineB.2fa: reply ok 1124 read [|nfs]
00:05:22.470637 machineB.2fb > machineA.nfs: 104 read [|nfs]
00:05:22.472204 machineA.nfs > machineB.2fb: reply ok 1124 read [|nfs]
00:05:22.479239 machineB.2fc > machineA.nfs: 104 read [|nfs]
00:05:22.480885 machineA.nfs > machineB.2fc: reply ok 1124 read [|nfs]
00:05:22.487925 machineB.2fd > machineA.nfs: 104 read [|nfs]
00:05:22.489549 machineA.nfs > machineB.2fd: reply ok 1124 read [|nfs]
00:05:22.496667 machineB.2fe > machineA.nfs: 104 read [|nfs]
00:05:22.498283 machineA.nfs > machineB.2fe: reply ok 1124 read [|nfs]
00:05:22.505417 machineB.2ff > machineA.nfs: 104 read [|nfs]
00:05:22.506955 machineA.nfs > machineB.2ff: reply ok 1036 read [|nfs]
00:06:06.666367 rarp who-is machineB tell machineB
00:06:06.669980 rarp reply machineB at machineB
00:06:06.832599 arp who-has machineB tell machineB
00:06:06.838146 machineB.1023 > 192.168.0.255.sunrpc: udp 96
00:06:06.873980 machineA.sunrpc > machineB.1023: udp 68
00:06:07.191126 arp who-has machineA tell machineB
00:06:07.191403 arp reply machineA is-at 0:0:c0:6c:27:ba
00:06:07.192694 machineB.1023 > machineA.655: udp 80
00:06:07.206353 machineA.655 > machineB.1023: udp 80
00:06:07.211149 machineB.1023 > machineA.sunrpc: udp 76
00:06:07.213352 machineA.sunrpc > machineB.1023: udp 28
00:06:07.217488 machineB.1023 > machineA.688: udp 84
00:06:07.235862 machineA.688 > machineB.1023: udp 60
00:06:07.240411 machineB.1023 > machineA.sunrpc: udp 76
00:06:07.241609 machineA.sunrpc > machineB.1023: udp 28
00:06:07.246231 machineB.1023 > machineA.655: udp 80
00:06:07.257856 machineA.655 > machineB.1023: udp 80
00:06:07.262731 machineB.1023 > machineA.sunrpc: udp 76
00:06:07.266903 machineA.sunrpc > machineB.1023: udp 28
00:06:07.271084 machineB.1023 > machineA.688: udp 84
00:06:07.286451 machineA.688 > machineB.1023: udp 28

end...