Last Updated：2025/11/29
(Internet) The situation where the internal routing table of a network provider is broadcast externally to peered networks via Border Gateway Protocol (usually caused by an error in a boundary router), resulting in incorrectly routed internet traffic for external networks which accept the new routing instruction into their own routing tables.
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routing leak
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Source Word
routing leak
Noun
Internet
(Internet)
The
situation
where
the
internal
routing
table
of
a
network
provider
is
broadcast
externally
to
peered
networks
via
Border
Gateway
Protocol
(usually
caused
by
an
error
in
a
boundary
router),
resulting
in
incorrectly
routed
internet
traffic
for
external
networks
which
accept
the
new
routing
instruction
into
their
own
routing
tables.
Japanese Meaning
ルーティングリークとは、ネットワークプロバイダーの内部用ルーティングテーブルが、境界ルーターの設定ミスなどによって誤って外部のピアネットワークに伝播され、その結果、外部ネットワークで受け入れられた誤ったルーティング情報に基づいてインターネットトラフィックが誤った経路で送られる現象を指します。
Sense（1）
(Internet)
The
situation
where
the
internal
routing
table
of
a
network
provider
is
broadcast
externally
to
peered
networks
via
Border
Gateway
Protocol
(usually
caused
by
an
error
in
a
boundary
router),
resulting
in
incorrectly
routed
internet
traffic
for
external
networks
which
accept
the
new
routing
instruction
into
their
own
routing
tables.
（ plural ）
