From f7a40ec650999d96bc71f78533540328d0c3d1f0 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Sat, 27 Jul 2013 13:36:08 +0100
Subject: [PATCH] Tweak when old prefix returns.

---
 src/dhcp6.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/dhcp6.c b/src/dhcp6.c
index 7b6aaf5..19e3cde 100644
--- a/src/dhcp6.c
+++ b/src/dhcp6.c
@@ -555,7 +555,15 @@ static int construct_worker(struct in6_addr *local, int prefix,
 	      int flags = context->flags;
 	      context->flags &= ~(CONTEXT_GC | CONTEXT_OLD);
 	      if (flags & CONTEXT_OLD)
-		log_context(AF_INET6, context);
+		{
+		  /* address went, now it's back */
+		  log_context(AF_INET6, context); 
+		  /* fast RAs for a while */
+		  ra_start_unsolicted(param->now, context);
+		  /* Add address to name again */
+		  if (context->flags & CONTEXT_RA_NAME)
+		    param->newname = 1;
+		}
 	      break;
 	    }