Port 5072AYIYA IPv6 tunneling

AYIYA carries IPv6 packets across UDP or TCP tunnels, historically used by SixXS and other IPv6 tunnel endpoints.

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

also known as IPv6 over AYIYA, SixXS AYIYA

Technical Details

what runs on :5072

AYIYA encapsulates IPv6 packets for transport over UDP or TCP; IANA assigns port 5072 for both. Its packet format includes protocol and operation fields, identity/authentication information, and the tunneled payload, allowing endpoints to exchange tunnel traffic and control or keepalive messages. AYIYA authenticates packets but does not encrypt them, so the inner IPv6 traffic is not confidential unless protected separately.

Security Information

exposure of :5072

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 1,617 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

tcp · udp

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

security overview

An exposed AYIYA endpoint may accept tunnel traffic from configured peers, so restrict it to the intended peers and disable it if the tunnel is no longer needed. Authentication helps prevent unauthorized use, but traffic is not encrypted by AYIYA itself; use a separate security layer if confidentiality is required.

Record

iana registry entry

port: :5072
service: AYIYA IPv6 tunneling
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services
usage: AYIYA (Anything In Anything) is an IPv6 tunneling protocol associated with Jeroen Massar and historically used by the SixXS tunnel broker. It is now uncommon; an open port may indicate a legacy or privately operated tunnel endpoint rather than a widely deployed service.
lookups: 0rank 993
added: 2026-10-06
updated: 2026-10-06
references: IANA service name registry — port 5072

Something wrong?

This record is maintained by the engineers who use port 5072. 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 2026-10-06.

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edit this record →back to the registry

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all 1,617 in network services →

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5072AYIYA IPv6 tunneling

Technical Details

Security Information

Related Ports

Port 5072AYIYA IPv6 tunneling