diff --git a/bin/netvm-topology.sh b/bin/netvm-topology.sh
index 0167f29..ecdf620 100755
--- a/bin/netvm-topology.sh
+++ b/bin/netvm-topology.sh
@@ -12,3 +12,8 @@ for ns in $(ip netns list 2>/dev/null | awk '{print $1}' | grep '^warp-'); do
 done
 # host-side NAT rules for our subnets
 iptables -t nat -L POSTROUTING -n 2>/dev/null | grep '10.201\.' || echo "no netvm NAT rules on host"
+
+echo "--- host links ---"
+ip link show 2>/dev/null | grep -E 'veth-|vpeer-|wg-' || echo "(no netvm links on host)"
+echo "--- all netns ---"
+ip netns list 2>/dev/null || echo "(none)"