From 5a284147d3c3b34531c48f64e0c09c9ee77002a0 Mon Sep 17 00:00:00 2001
From: laforge <laforge>
Date: Wed, 26 Nov 2003 12:50:38 +0000
Subject: add mac check

---
 extensions/libipt_CLUSTERIP.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/extensions/libipt_CLUSTERIP.c b/extensions/libipt_CLUSTERIP.c
index 6741fd7..55e86c5 100644
--- a/extensions/libipt_CLUSTERIP.c
+++ b/extensions/libipt_CLUSTERIP.c
@@ -118,6 +118,8 @@ parse(int c, char **argv, int invert, unsigned int *flags,
 		if (*flags & PARAM_MAC)
 			exit_error(PARAMETER_PROBLEM, "Can only specify MAC once\n");
 		parse_mac(optarg, cipinfo->clustermac);
+		if (!(cipinfo->clustermac[0] & 0x01))
+			exit_error(PARAMETER_PROBLEM, "MAC has to be a multicast ethernet address\n");
 		*flags |= PARAM_MAC;
 		break;
 	case '4':
-- 
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