networkd: turn on LLDP reception by default, in "routers-only" mode

This way "networkctl status" becomes a bit more useful by default, as router
information is just visible, without any further configuration.

LLDP reception is fully passive and relatively low simple and low traffic,
hence this should be safe to enable by default.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index a6512d26e5..935042260b 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -119,6 +119,8 @@ static int network_load_one(Manager *manager, const char *filename) {
         network->allow_port_to_be_root = true;
         network->unicast_flood = true;
 
+        network->lldp_mode = LLDP_MODE_ROUTERS_ONLY;
+
         network->llmnr = RESOLVE_SUPPORT_YES;
         network->mdns = RESOLVE_SUPPORT_NO;
         network->dnssec_mode = _DNSSEC_MODE_INVALID;