From: Neale Ranns <nranns@cisco.com>
Date: Mon, 4 Mar 2019 22:11:25 +0000 (-0800)
Subject: L2: ARP term - learn but don't send response to GARPs
X-Git-Tag: v19.04-rc1~335
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=d2bb61417fdb37d192cf25583d7d8fb50be19291

L2: ARP term - learn but don't send response to GARPs

Change-Id: I766767d27f37493dc9f2bde1297c1b620cd1e321
Signed-off-by: Neale Ranns <nranns@cisco.com>
---

diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c
index 6b651e7e20a..724cfa867c8 100644
--- a/src/vnet/ethernet/arp.c
+++ b/src/vnet/ethernet/arp.c
@@ -2410,6 +2410,9 @@ arp_term_l2bd (vlib_main_t * vm,
 
 	  if (PREDICT_FALSE (!macp0))
 	    goto next_l2_feature;	/* MAC not found */
+	  if (PREDICT_FALSE (arp0->ip4_over_ethernet[0].ip4.as_u32 ==
+			     arp0->ip4_over_ethernet[1].ip4.as_u32))
+	    goto next_l2_feature;	/* GARP */
 
 	  /* MAC found, send ARP reply -
 	     Convert ARP request packet to ARP reply */