Disable PMTUDiscovery in switch and hub modes.

[tinc] / src / net_setup.c

diff --git a/src/net_setup.c b/src/net_setup.c
index 70992f6..256fdf7 100644 (file)
--- a/src/net_setup.c
+++ b/src/net_setup.c
@@ -286,9 +286,6 @@ bool setup_myself(void)
        if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice) && choice)
                myself->options |= OPTION_TCPONLY;
 
-       if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice)
-               myself->options |= OPTION_PMTU_DISCOVERY;
-
        if(myself->options & OPTION_TCPONLY)
                myself->options |= OPTION_INDIRECT;
 
@@ -309,6 +306,10 @@ bool setup_myself(void)
        } else
                routing_mode = RMODE_ROUTER;
 
+       if(routing_mode == RMODE_ROUTER)
+               if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice)
+                       myself->options |= OPTION_PMTU_DISCOVERY;
+
        get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance);
 
 #if !defined(SOL_IP) || !defined(IP_TOS)