Port 6363Named Data Networking (NDN)

UDP 6363 is a common listener for Named Data Networking forwarders exchanging Interest and Data packets.

transport: udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as ndn

Technical Details

what runs on :6363

NDN carries named-data Interest requests and Data responses rather than addressing communication primarily to host endpoints. NFD commonly listens on UDP port 6363 for UDP faces; UDP has no connection handshake, and NDN packets use a TLV encoding, with NDNLP link-service framing available for functions such as fragmentation. The IANA assignment is specifically UDP; NDN deployments may also use other transports, including TCP.

Security Information

exposure of :6363

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.6 across 1,707 ports — this one sits 0.6 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Traffic is not encrypted by default: Data packets can be signed for integrity and producer authentication, but signatures do not conceal content, and Interests are not necessarily authenticated. An exposed forwarder may receive unwanted Interests or be subjected to traffic and resource-exhaustion abuse; avoid internet exposure unless the deployment requires it, and apply appropriate filtering and rate limits.

Record

iana registry entry

port: :6363
service: Named Data Networking (NDN)
transport: UDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services
usage: NDN forwarders, commonly the NDN Forwarding Daemon (NFD), use UDP 6363 for network-layer traffic in research and experimental NDN deployments. It is not a common general-purpose internet service, and this port was not observed open in the cited internet-wide scan data.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6363

Something wrong?

This record is maintained by the engineers who use port 6363. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-10.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 1,707 in network services →

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:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :6363Named Data Networking (NDN)

Technical Details

Security Information

Related Ports

Port 6363Named Data Networking (NDN)