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From 1d224949cced9e82440d00b3dbaf32c262bac2ff Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Sat, 8 Jul 2017 20:52:55 +0100
Subject: [PATCH 1/2] Remove ping-check of configured DHCP address.

This was added in 5ce3e76fbf89e942e8c54ef3e3389facf0d9067a but
it trips over too many buggy clients that leave an interface configured
even in DHCPDISCOVER case.
---
 src/rfc2131.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/rfc2131.c b/src/rfc2131.c
index 86230b4..785e15c 100644
--- a/src/rfc2131.c
+++ b/src/rfc2131.c
@@ -1040,8 +1040,6 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
 		  else if (have_config(config, CONFIG_DECLINED) &&
 			   difftime(now, config->decline_time) < (float)DECLINE_BACKOFF)
 		    my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it was previously declined"), addrs);
-		  else if ((!lease || lease->addr.s_addr != config->addr.s_addr) && !do_icmp_ping(now, config->addr, 0, loopback))
-		    my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it is in use by another host"), addrs);
 		  else
 		    conf = config->addr;
 		}
-- 
2.13.2