dhcp: fix crash on unicast renewal send

Type: fix

- when the addresses were learnt a copy of the client was sent to the
main thread, this meant the unicast adjacecny was saved on the copy
not on the original.
- Add logging.
- Improve the proxy-node that hands the clint packets so the DHCP
packets are traced.
 - allow a renewal to configure new address data

Change-Id: I6ab0afcccbc4a1cdefdd1b8beeda8fc7ba20ec1f
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/src/vnet/ip/ip4_punt_drop.c b/src/vnet/ip/ip4_punt_drop.c
index fc5a68fc66a..aee84b4df52 100644
--- a/src/vnet/ip/ip4_punt_drop.c
+++ b/src/vnet/ip/ip4_punt_drop.c
@@ -187,10 +187,7 @@ VLIB_REGISTER_NODE (ip4_not_enabled_node) =
   .name = "ip4-not-enabled",
   .vector_size = sizeof (u32),
   .format_trace = format_ip4_forward_next_trace,
-  .n_next_nodes = 1,
-  .next_nodes = {
-    [0] = "error-drop",
-  },
+  .sibling_of = "ip4-drop",
 };
 
 VLIB_REGISTER_NODE (ip4_punt_node) =