From d018870d1b02109fc8b328446f15312fdd2fcd11 Mon Sep 17 00:00:00 2001 From: John Lo Date: Wed, 6 Jun 2018 20:12:46 -0400 Subject: [PATCH] Allow arp-input node to learn IPv4 neighbors from GARP packets Change-Id: I86019f4ff9b0c8c633638fa23341d8ce49099ba6 Signed-off-by: John Lo --- src/vnet/ethernet/arp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c index 682bc2a2c92..203f6f7f01a 100644 --- a/src/vnet/ethernet/arp.c +++ b/src/vnet/ethernet/arp.c @@ -1163,6 +1163,11 @@ arp_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) clib_host_to_net_u16 (ETHERNET_ARP_OPCODE_request) && (dst_is_local0 == 0)) { + /* learn from GARP packet */ + if (arp0->ip4_over_ethernet[0].ip4.as_u32 == + arp0->ip4_over_ethernet[1].ip4.as_u32) + error0 = arp_learn (vnm, am, sw_if_index0, + &arp0->ip4_over_ethernet[0]); goto drop1; } -- 2.16.6