diff --git a/dhcp-4.1.0-missing-ipv6-not-fatal.patch b/dhcp-4.1.0-missing-ipv6-not-fatal.patch
index 41d8369..16524cc 100644
--- a/dhcp-4.1.0-missing-ipv6-not-fatal.patch
+++ b/dhcp-4.1.0-missing-ipv6-not-fatal.patch
@@ -1,21 +1,36 @@
 diff -up dhcp-4.1.0/common/discover.c.noipv6 dhcp-4.1.0/common/discover.c
---- dhcp-4.1.0/common/discover.c.noipv6	2009-02-18 09:40:45.000000000 -1000
-+++ dhcp-4.1.0/common/discover.c	2009-02-18 09:43:53.000000000 -1000
-@@ -447,9 +447,11 @@ begin_iface_scan(struct iface_conf_list 
- 	if (ifaces->fp6 == NULL) {
- 		log_error("Error opening '/proc/net/if_inet6' to "
- 			  "list IPv6 interfaces; %m");
--		close(ifaces->sock);
-+		if (ifaces->sock)
-+			close(ifaces->sock);
- 		ifaces->sock = -1;
--		fclose(ifaces->fp);
-+		if (ifaces->fp)
-+			fclose(ifaces->fp);
- 		ifaces->fp = NULL;
- 		return 0;
+--- dhcp-4.1.0/common/discover.c.noipv6	2009-02-18 10:44:20.000000000 -1000
++++ dhcp-4.1.0/common/discover.c	2009-02-18 10:48:27.000000000 -1000
+@@ -443,15 +443,19 @@ begin_iface_scan(struct iface_conf_list 
  	}
-@@ -719,7 +721,7 @@ next_iface(struct iface_info *info, int 
+ 
+ #ifdef DHCPv6
+-	ifaces->fp6 = fopen("/proc/net/if_inet6", "re");
+-	if (ifaces->fp6 == NULL) {
+-		log_error("Error opening '/proc/net/if_inet6' to "
+-			  "list IPv6 interfaces; %m");
+-		close(ifaces->sock);
+-		ifaces->sock = -1;
+-		fclose(ifaces->fp);
+-		ifaces->fp = NULL;
+-		return 0;
++	if (!access("/proc/net/if_inet6", R_OK)) {
++		ifaces->fp6 = fopen("/proc/net/if_inet6", "re");
++		if (ifaces->fp6 == NULL) {
++			log_error("Error opening '/proc/net/if_inet6' to "
++				  "list IPv6 interfaces; %m");
++			close(ifaces->sock);
++			ifaces->sock = -1;
++			fclose(ifaces->fp);
++			ifaces->fp = NULL;
++			return 0;
++		}
++	} else {
++		ifaces->fp6 = NULL;
+ 	}
+ #endif
+ 
+@@ -719,7 +723,7 @@ next_iface(struct iface_info *info, int 
  		return 1;
  	}
  #ifdef DHCPv6
@@ -24,7 +39,7 @@ diff -up dhcp-4.1.0/common/discover.c.noipv6 dhcp-4.1.0/common/discover.c
  		return next_iface6(info, err, ifaces);
  	}
  #endif
-@@ -736,7 +738,8 @@ end_iface_scan(struct iface_conf_list *i
+@@ -736,7 +740,8 @@ end_iface_scan(struct iface_conf_list *i
  	close(ifaces->sock);
  	ifaces->sock = -1;
  #ifdef DHCPv6