From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Thu, 13 Nov 2014 01:17:24 +0100
Subject: odhcp6c: always accept RDNSS, independent of the default router lifetime

diff --git a/package/network/ipv6/odhcp6c/patches/001-always_accept_rdnss.patch b/package/network/ipv6/odhcp6c/patches/001-always_accept_rdnss.patch
new file mode 100644
index 0000000..ae4e18d
--- /dev/null
+++ b/package/network/ipv6/odhcp6c/patches/001-always_accept_rdnss.patch
@@ -0,0 +1,16 @@
+--- a/src/ra.c
++++ b/src/ra.c
+@@ -409,13 +409,6 @@ bool ra_process(void)
+ 				}
+ 			}
+ 		}
+-
+-		size_t ra_dns_len;
+-		struct odhcp6c_entry *entry = odhcp6c_get_state(STATE_RA_DNS, &ra_dns_len);
+-		for (size_t i = 0; i < ra_dns_len / sizeof(*entry); ++i)
+-			if (IN6_ARE_ADDR_EQUAL(&entry[i].router, &from.sin6_addr) &&
+-					entry[i].valid > router_valid)
+-				entry[i].valid = router_valid;
+ 	}
+ 
+ 	if (found)