Is port 3544 (Teredo Tunneling) dangerous?

Port 3544 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 3544 be open on my firewall?

Port 3544 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 3544 use?

Port 3544 (Teredo Tunneling) uses the UDP transport protocol and falls under the System & Infrastructure category.

:3544 (UDP)

Teredo Tunneling

Medium Risque

UDP — System & Infrastructure

Aperçu du port

Numéro de port 3544

Nom du service Teredo Tunneling

Protocole de transport UDP

Catégorie System & Infrastructure

Risque de sécurité Medium

Plage de ports Enregistré (1024-49151)

Qu'est-ce que le port 3544?

Port 3544 is used by Teredo, a Microsoft tunneling protocol that provides IPv6 connectivity to hosts that are behind IPv4 NAT devices. Teredo encapsulates IPv6 packets within IPv4 UDP datagrams to traverse NAT boundaries. It was commonly used during the IPv4-to-IPv6 transition period.

UDP System & Infrastructure

Considérations de sécurité

Le port 3544 (Teredo Tunneling) est classifié comme risque moyen. Bien que ce service soit couramment exposé, envisagez d'utiliser des alternatives chiffrées lorsqu'elles sont disponibles.

Recommandation : Maintenez le service à jour. Surveillez les journaux pour détecter toute activité inhabituelle.

Ports associés — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Termes associés

Bandwidth Latency Packet Loss Ping Throughput ASN