X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnet_packet.c;h=40cb2bac1443783a0803e4f21e277ea252e0398f;hb=9bb230f30f665779eb89dcce077a15360ec50be1;hp=8dba3258d989b1c159eb9307390f3ad5896c1ec8;hpb=6568cffd52d4803effaf52a9bb9c98d69cf7922a;p=tinc

diff --git a/src/net_packet.c b/src/net_packet.c
index 8dba3258..40cb2bac 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -1394,6 +1394,17 @@ skip_harder:
 			return;
 		}
 
+		/* The packet is supposed to come from the originator or its static relay
+		   (i.e. with no dynamic relays in between).
+		   If it did not, "help" the static relay by sending it UDP info.
+		   Note that we only do this if we're the destination or the static relay;
+		   otherwise every hop would initiate its own UDP info message, resulting in elevated chatter. */
+
+		if(n != from->via && to->via == myself)
+			send_udp_info(myself, from);
+
+		/* If we're not the final recipient, relay the packet. */
+
 		if(to != myself) {
 			send_sptps_data_priv(to, n, 0, DATA(&pkt), pkt.len - 2 * sizeof(node_id_t));
 			try_tx_sptps(n, true);