diff --git a/aurp/zone_info_test.go b/aurp/zone_info_test.go
new file mode 100644
index 0000000..b9b52c3
--- /dev/null
+++ b/aurp/zone_info_test.go
@@ -0,0 +1,30 @@
+package aurp
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestZoneTuplesEncoding(t *testing.T) {
+	zones := ZoneTuples{
+		{
+			Network: 0x64,
+			Name:    "The Twilight Zone",
+		},
+	}
+
+	b := bytes.NewBuffer(nil)
+	zones.WriteTo(b)
+
+	got := b.Bytes()
+	want := append([]byte{
+		0x00, 0x01, // Number of zone tuples
+		0x00, 0x64, // Network number
+		0x11, // Length of string
+	}, zones[0].Name...)
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf("encoded zone tuples diff (-got +want):\n%s", diff)
+	}
+}
diff --git a/go.mod b/go.mod
index 16aa3c1..52b4ad9 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,7 @@ module gitea.drjosh.dev/josh/jrouter
 
 go 1.22.0
 
-require gopkg.in/yaml.v3 v3.0.1
+require (
+	github.com/google/go-cmp v0.6.0
+	gopkg.in/yaml.v3 v3.0.1
+)
diff --git a/go.sum b/go.sum
index 4bc0337..9d8a8fa 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,5 @@
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/jrouter.yaml b/jrouter.yaml
index 540e521..a2dde95 100644
--- a/jrouter.yaml
+++ b/jrouter.yaml
@@ -1,7 +1,7 @@
 ethertalk:
     zone: The Twilight Zone
     net_start: 100
-    net_end: 109
+    net_end: 100
 
 open_peering: true
 peers:
diff --git a/main.go b/main.go
index c387739..3b9582b 100644
--- a/main.go
+++ b/main.go
@@ -55,6 +55,8 @@ func main() {
 
 	log.Printf("Using %v as local domain identifier", localIP)
 
+	log.Printf("EtherTalk configuration: %+v", cfg.EtherTalk)
+
 	peers := make(map[udpAddr]*peer)
 	var nextConnID uint16