X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Froute.c;h=69d0ba74a44be90fc376bfb436914c995dbd6998;hb=04d8a8e34e1fe7f33f1946863b36a24ee358175f;hp=26a8aabc176447bc9265838bff6e3863fc0147d1;hpb=6831262780e0bc707841227b5e069ee8756ddebf;p=tinc

diff --git a/src/route.c b/src/route.c
index 26a8aabc..69d0ba74 100644
--- a/src/route.c
+++ b/src/route.c
@@ -485,7 +485,7 @@ static void clamp_mss(const node_t *source, const node_t *via, vpn_packet_t *pac
 		csum += csum >> 16;
 		csum ^= 0xffff;
 		DATA(packet)[start + 16] = csum >> 8;
-		DATA(packet)[start + 17] = csum;
+		DATA(packet)[start + 17] = csum & 0xff;
 		break;
 	}
 }