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bgpgrep — Filter and print BGP data within MRT dumps. Can read files compressed with `gzip`, `bzip2`, and `xz`

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the bgpgrep command: Filter and print BGP data within MRT dumps. Can read files compressed with gzip, bzip2, and xz. More information: <https://codeberg.org/1414codeforge/ubgpsuite>.

Solution

bgpgrep — Filter and print BGP data within MRT dumps. Can read files compressed with gzip, bzip2, and xz. More information: <https://codeberg.org/1414codeforge/ubgpsuite>.

List all routes:

bgpgrep {{master6.mrt}}

List routes received from a specific peer, determined by the peer's AS number:

bgpgrep {{master4.mrt}} -peer {{64498}}

List routes received from a specific peer, determined by the peer's IP address:

bgpgrep {{master4.mrt.bz2}} -peer {{2001:db8:dead:cafe:acd::19e}}

List routes which have certain ASNs in their AS path:

bgpgrep {{master6.mrt.bz2}} -aspath '{{64498 64510}}'

List routes that lead to a specific address:

bgpgrep {{master6.mrt.bz2}} -supernet '{{2001:db8:dead:cafe:aef::5}}'

List routes that have communities from a specific AS:

bgpgrep {{master4.mrt}} -communities \( '{{64497}}:*' \)

Code Snippets

List all routes

bgpgrep {{master6.mrt}}

List routes received from a specific peer, determined by the peer's AS number

bgpgrep {{master4.mrt}} -peer {{64498}}

List routes received from a specific peer, determined by the peer's IP address

bgpgrep {{master4.mrt.bz2}} -peer {{2001:db8:dead:cafe:acd::19e}}

List routes which have certain ASNs in their AS path

bgpgrep {{master6.mrt.bz2}} -aspath '{{64498 64510}}'

List routes that lead to a specific address

bgpgrep {{master6.mrt.bz2}} -supernet '{{2001:db8:dead:cafe:aef::5}}'

Context

tldr-pages: common/bgpgrep

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