gazagnaire.org
System ARP cache reader
docs: add the opam overlay repo to README install steps
These packages are published only to the opam overlay, not the public
opam-repository. Without the repo-add line a reader who runs opam install
gets nothing and has to hunt down the overlay URL by hand.
author
Thomas Gazagnaire
date
(Jul 7, 2026, 4:55 PM UTC)
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README.md
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README.md
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`table`, `lookup` and `lookup_mac` touch the operating system. For the ARP
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*wire protocol* codec, see [`nox-arp`](../ocaml-arp/README.md).
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## Installation
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Install with opam:
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<!-- $MDX skip -->
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```sh
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$ opam install arp-cache
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```
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If opam cannot find the package, it may not yet be released in the public
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`opam-repository`. Add the overlay repository, then install it:
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<!-- $MDX skip -->
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```sh
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$ opam repo add samoht https://tangled.org/gazagnaire.org/opam-overlay.git
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$ opam update
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$ opam install arp-cache
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```
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## Usage
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`Arp_cache.table ()` returns the cache as a list of `{ ip; mac; interface }`