diff -uNpr vblade-15-orig/freebsd.c vblade-15-lsf/freebsd.c
--- vblade-15-orig/freebsd.c	2008-03-07 20:22:16.000000000 +0000
+++ vblade-15-lsf/freebsd.c	2008-04-30 10:45:11.000000000 +0100
@@ -54,40 +54,44 @@ dial(char *eth)
 
 	/* packet filter for bpf */
 	struct bpf_insn bpf_insns[] = {
-	  /* Load the type into register */
-	  BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 12),
-	  /* Does it match AoE Type (0x88a2)? No, goto INVALID */
-	  BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0x88a2, 0, 10),
-	  /* Load the flags into register */
-	  BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 14),
-	  /* Check to see if the Resp flag is set */
-	  BPF_STMT(BPF_ALU+BPF_AND+BPF_K, Resp),
-	  /* Yes, goto INVALID */
-	  BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0, 0, 7),
-	  /* Load the command into register */
-	  BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 19),
-	  /* Is this a ATAcmd? No, goto VALID */
-	  BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ATAcmd, 0, 4),
-	  /* Load the shelf number into register */
-	  BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16),
-	  /* Does it match shelf number? No, goto INVALID */
-	  BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) shelf, 0, 3),
-	  /* Load the slot number into register */
-	  BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18),
-	  /* Does it match shelf number? No, goto INVALID */
-	  BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) slot, 0, 1),
-	  /* VALID: return -1 (allow the packet to be read) */
-	  BPF_STMT(BPF_RET+BPF_K, (u_int)-1),
-	  /* INVALID: return 0 (ignore the packet) */
-	  BPF_STMT(BPF_RET+BPF_K, 0),
+		/* Load the type into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 12),
+		/* Does it match AoE Type (0x88a2)? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0x88a2, 0, 12),
+		/* Load the flags into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 14),
+		/* Check to see if the Resp flag is set */
+		BPF_STMT(BPF_ALU+BPF_AND+BPF_K, Resp),
+		/* Yes, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0, 0, 9),
+		/* Load the shelf number into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16),
+		/* Does it match shelf number? No, goto CHECKBROADCAST */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) shelf, 0, 2),
+		/* Load the slot number into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18),
+		/* Does it match shelf number? Yes, goto VALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) slot, 4, 0),
+		/* CHECKBROADCAST: is (shelf, slot) == (0xffff, 0xff)? */
+		/* Load the shelf number into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16),
+		/* Is it 0xffff? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) 0xffff, 0, 3),
+		/* Load the slot number into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18),
+		/* Is it 0xff? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) 0xff, 0, 1),
+		/* VALID: return -1 (allow the packet to be read) */
+		BPF_STMT(BPF_RET+BPF_K, (u_int) -1),
+		/* INVALID: return 0 (ignore the packet) */
+		BPF_STMT(BPF_RET+BPF_K, 0),
 	};
 
 	struct bpf_program bpf_program = {
-	  sizeof(bpf_insns)/sizeof(struct bpf_insn),
-	  bpf_insns
+		sizeof(bpf_insns)/sizeof(struct bpf_insn),
+		bpf_insns
 	};
-
-
+	
 	strncpy(device, BPF_DEV, sizeof BPF_DEV);
 
 	/* find a bpf device we can use, check /dev/bpf[0-9] */
diff -uNpr vblade-15-orig/linux.c vblade-15-lsf/linux.c
--- vblade-15-orig/linux.c	2008-03-07 20:22:16.000000000 +0000
+++ vblade-15-lsf/linux.c	2008-04-30 10:46:04.000000000 +0100
@@ -22,6 +22,7 @@
 #include <netinet/in.h>
 #include <linux/fs.h>
 #include <sys/stat.h>
+#include <pcap-bpf.h>
 
 #include "dat.h"
 #include "fns.h"
@@ -54,6 +55,49 @@ dial(char *eth)		// get us a raw connect
 		perror("bind funky");
 		return -1;
 	}
+
+	/* bpf packet filter for socket */
+	struct bpf_insn bpf_insns[] = {
+		/* Load the type into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 12),
+		/* Does it match AoE Type (0x88a2)? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0x88a2, 0, 12),
+		/* Load the flags into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 14),
+		/* Check to see if the Resp flag is set */
+		BPF_STMT(BPF_ALU+BPF_AND+BPF_K, Resp),
+		/* Yes, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0, 0, 9),
+		/* Load the shelf number into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16),
+		/* Does it match shelf number? No, goto CHECKBROADCAST */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) shelf, 0, 2),
+		/* Load the slot number into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18),
+		/* Does it match shelf number? Yes, goto VALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) slot, 4, 0),
+		/* CHECKBROADCAST: is (shelf, slot) == (0xffff, 0xff)? */
+		/* Load the shelf number into register */
+		BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16),
+		/* Is it 0xffff? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) 0xffff, 0, 3),
+		/* Load the slot number into register */
+		BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18),
+		/* Is it 0xff? No, goto INVALID */
+		BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (u_int) 0xff, 0, 1),
+		/* VALID: return -1 (allow the packet to be read) */
+		BPF_STMT(BPF_RET+BPF_K, (u_int) -1),
+		/* INVALID: return 0 (ignore the packet) */
+		BPF_STMT(BPF_RET+BPF_K, 0),
+	};
+
+	struct bpf_program bpf_program = {
+		sizeof(bpf_insns)/sizeof(struct bpf_insn),
+		bpf_insns
+	};
+
+	setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_program, sizeof(bpf_program));
+
 	return s;
 }