This is the only missing piece to make native tunneling work with dummy
devices for testing purposes.
Signed-off-by: Ben Pfaff <b...@nicira.com>
---
lib/netdev-dummy.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/lib/netdev-dummy.c b/lib/netdev-dummy.c
index 4d1ef8a..ff65689 100644
--- a/lib/netdev-dummy.c
+++ b/lib/netdev-dummy.c
@@ -932,6 +932,23 @@ netdev_dummy_send(struct netdev *netdev, int qid
OVS_UNUSED,
dummy_packet_conn_send(&dev->conn, buffer, size);
+ /* Reply to ARP requests for 'dev''s assigned IP address. */
+ if (dev->address.s_addr) {
+ struct dp_packet packet;
+ struct flow flow;
+
+ dp_packet_use_const(&packet, buffer, size);
+ flow_extract(&packet, &flow);
+ if (flow.dl_type == htons(ETH_TYPE_ARP)
+ && flow.nw_proto == ARP_OP_REQUEST
+ && flow.nw_dst == dev->address.s_addr) {
+ struct dp_packet *reply = dp_packet_new(0);
+ compose_arp(reply, ARP_OP_REPLY, dev->hwaddr, flow.dl_src,
+ false, flow.nw_dst, flow.nw_src);
+ netdev_dummy_queue_packet(dev, reply);
+ }
+ }
+
if (dev->tx_pcap) {
struct dp_packet packet;
--
2.1.3
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