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udptunnel (rfc1036)

github.com/rfc1036/udptunnelTool (wireguard transport)egress/udptunnelJSONcomparereport an errorprovider JSON

Free allowance
No service and no account; a small C program
Verdict
self-hosted, last resortverdict paid-only: no free allowance; listed for its price. Self-hosted options are listed last, because this site is for users who have no hardware.
Cost
no price statedsee Price below
Identity
anonymousno card, no phone
Binding limit
noneno named constraint binds
Evidence
reported2 sources; a third party said so
Freshness
stale on 2026-11-07checked 2026-10-23 (live); stale on 2026-11-07
Free tierno service and no account; a small C program
unit none; metered on none
PriceUSD 0
Bindingnone the constraint is a host at each end, and it is the oldest and thinnest example of that requirement
Identityanonymous no account
Egressnot applicable; the software states no volume; ingress: tcp
free allowance: none published
Interfacecli udptunnel -s / -c
ToolingC, built from source
Composes withcomposes with a host at each end and nothing else.
Reliabilityunauthenticated by design; predates WireGuard and inherits none of its protections at the transport layer
NotesIt predates WireGuard and has no TLS, no authentication and no multiplexing, so the only reason to reach for it over udp2raw or wg-tcp-tunnel is simplicity. Its README was not opened; the rung says so.
Evidence notereported the repository README was not read; the description and the WireGuard limitations page are the evidence, so a read of the source would raise it to documented
Parsed numbers
  • has-free-tier 0
  • price USD 0
Evidence 2
datesourcewhat it proved
2026-10-23github.com/rfc1036/udptunnelrepository description "Tunnel UDP packets in a TCP connection"; 222 stars; last push 2024-04-22; no releases
2026-10-23www.wireguard.com/known-limitations/WireGuard names udptunnel alongside udp2raw as a project that can transform its UDP packets into TCP
More fields 9
wg pathnone
wg detail"Tunnel UDP packets in a TCP connection"; one side listens for TCP, the other for UDP, and WireGuard's endpoint points at the UDP side
ingresstcp
volume statednot applicable; the software states no volume
bytes transityes
transit notethrough the server half to the UDP listener
hosting requirementtwo hosts, one listening on TCP and one forwarding to the local UDP port
last releaseno releases; last push 2024-04-22
stars222
Unknown values 2
  • per object cap stated: the field does not apply to this kind of offer
  • retention stated: the field does not apply to this kind of offer