X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=src%2Fra.c;h=3e36f94692e14921cb9aa94132d032181cf654e1;hb=6c8109e0c77d5a54950ba607d1ec1f83d5efb5b7;hp=560552fcbd5bb4149bb9f2df8043bd30394ee76a;hpb=6cda10d0b5f43234b2fefdf1ab94ee341878d010;p=odhcp6c.git

diff --git a/src/ra.c b/src/ra.c
index 560552f..3e36f94 100644
--- a/src/ra.c
+++ b/src/ra.c
@@ -311,11 +311,13 @@ bool ra_process(void)
 			update_proc("conf", "hop_limit", adv->nd_ra_curhoplimit);
 
 		// Parse ND parameters
-		if (ntohl(adv->nd_ra_reachable) <= 3600000)
-			update_proc("neigh", "base_reachable_time_ms", ntohl(adv->nd_ra_reachable));
+		uint32_t reachable = ntohl(adv->nd_ra_reachable);
+		if (reachable > 0 && reachable <= 3600000)
+			update_proc("neigh", "base_reachable_time_ms", reachable);
 
-		if (ntohl(adv->nd_ra_retransmit) <= 60000)
-			update_proc("neigh", "retrans_time_ms", ntohl(adv->nd_ra_retransmit));
+		uint32_t retransmit = ntohl(adv->nd_ra_retransmit);
+		if (retransmit > 0 && retransmit <= 60000)
+			update_proc("neigh", "retrans_time_ms", retransmit);
 
 
 		// Evaluate options