From 3d3ee69a37239c7be7ecc751a3701c3160744ad6 Mon Sep 17 00:00:00 2001
From: jlemon <jlemon@FreeBSD.org>
Date: Fri, 15 Jun 2001 21:00:32 +0000
Subject: Do not perform arp send/resolve on an interface marked NOARP.

PR: 25006
MFC after: 2 weeks
---
 sys/net/if_ethersubr.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'sys/net/if_ethersubr.c')

diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index f475f91..5b646b8 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -542,6 +542,11 @@ ether_demux(ifp, eh, m)
 		break;
 
 	case ETHERTYPE_ARP:
+		if (ifp->if_flags & IFF_NOARP) {
+			/* Discard packet if ARP is disabled on interface */
+			m_freem(m);
+			return;
+		}
 		schednetisr(NETISR_ARP);
 		inq = &arpintrq;
 		break;
-- 
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