X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Froute.c;h=f8b11bb6be7bcf405ec1a3ee7adfefa6f09cb57c;hp=850a146e496cf3d45ad5a730756e1b3f467185f8;hb=228a03aaa707a5fcced9dd5148a4bdb7e5ef025b;hpb=14abf170c2b39cd45fce621bdd0c905f444f5bd1

diff --git a/src/route.c b/src/route.c
index 850a146e..f8b11bb6 100644
--- a/src/route.c
+++ b/src/route.c
@@ -581,7 +581,7 @@ static void fragment_ipv4_packet(node_t *dest, vpn_packet_t *packet, length_t et
 	ifdebug(TRAFFIC) logger(LOG_INFO, "Fragmenting packet of %d bytes to %s (%s)", packet->len, dest->name, dest->hostname);
 
 	offset = packet->data + ether_size + ip_size;
-	maxlen = (dest->mtu - ether_size - ip_size) & ~0x7;
+	maxlen = (MAX(dest->mtu, 590) - ether_size - ip_size) & ~0x7;
 	ip_off = ntohs(ip.ip_off);
 	origf = ip_off & ~IP_OFFMASK;
 	ip_off &= IP_OFFMASK;