X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Froute.c;h=a1254d80832491ee947e505c2c2050a9cd33e0fa;hp=c11267b159efe51fe11bd8629807859b528692a6;hb=a588f6febeca13edd038d78e42efb8aa9f16a444;hpb=564a14bcd866b39252a4c1f839d6df1377bdb336

diff --git a/src/route.c b/src/route.c
index c11267b..a1254d8 100644
--- a/src/route.c
+++ b/src/route.c
@@ -891,7 +891,7 @@ static bool do_decrement_ttl(node_t *source, vpn_packet_t *packet) {
 			if(!checklength(source, packet, ethlen + ip_size))
 				return false;
 
-			if(packet->data[ethlen + 8] < 1) {
+			if(packet->data[ethlen + 8] <= 1) {
 				if(packet->data[ethlen + 11] != IPPROTO_ICMP || packet->data[ethlen + 32] != ICMP_TIME_EXCEEDED)
 					route_ipv4_unreachable(source, packet, ethlen, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL);
 				return false;
@@ -914,7 +914,7 @@ static bool do_decrement_ttl(node_t *source, vpn_packet_t *packet) {
 			if(!checklength(source, packet, ethlen + ip6_size))
 				return false;
 
-			if(packet->data[ethlen + 7] < 1) {
+			if(packet->data[ethlen + 7] <= 1) {
 				if(packet->data[ethlen + 6] != IPPROTO_ICMPV6 || packet->data[ethlen + 40] != ICMP6_TIME_EXCEEDED)
 					route_ipv6_unreachable(source, packet, ethlen, ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT);
 				return false;