install

Additional install commands

macOS

Homebrewverified · 100%

brew install rmcast

local Homebrew formula metadata

overview

Package summary

IP Multicast library

Project links

Commands and aliases

mcastproxy
rmchat

history

Project history and usage

rmcast packages RML, the Reliable Multicast Library, a free software library for reliable data transmission over IP multicast.

Project history

The official archived project page explains that IP multicast saves bandwidth by sending one packet across each physical link, but that UDP-based multicast lacks reliability. RML was developed to provide a reliable multicast environment and was distributed under the QPL.

Adoption history

The project appears to have been a niche academic and systems-networking library rather than a broad user-facing tool. Homebrew packaging keeps the library and the `mcastproxy` and `rmchat` executables installable for legacy multicast experiments.

How it is used

Package-level usage centers on the reliable multicast library and the shipped command-line programs `mcastproxy` and `rmchat`; the official project page says the release tarballs included a manual.

Why package nerds care

rmcast is notable to package maintainers as a preserved multicast library with old release tarballs, bundled manual material, and QPL licensing. It represents the kind of specialized networking code that survives mostly through Unix package collections.

Timeline

2004: Version 1.5 released on 2004-09-26.
2005: Version 1.6 released on 2005-12-14.
2006: Versions 1.7 and 1.8 released.
2008: Version 1.9 released on 2008-05-01.
2009: Version 2.0.0 released on 2009-08-06.

Related projects

Related technologies include IP multicast, UDP, reliable multicast protocols, `mcastproxy`, and `rmchat`.

Sources

https://formulae.brew.sh/api/formula/rmcast.json
https://web.archive.org/web/20250722003825/https://www.land.ufrj.br/tools/rmcast/rmcast.html
source_facts.executables

security posture

Risk level: green

library-like package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

library-like package without higher-risk signals

Signals

metadata:library-like

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 13 platform targets.
Build metadata lists 3 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`mcastproxy`	cli	global executable
`rmchat`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version2.0.0

manager updated2026-05-19

local dataok

upstreamnot checked

latest detectednot detected

https://web.archive.org/web/20250722003825/https://www.land.ufrj.br/tools/rmcast/rmcast.html

infoRelease/tag comparison is only available for GitHub repositories.https://web.archive.org/web/20250722003825/https://www.land.ufrj.br/tools/rmcast/rmcast.htmlnone confidence

install metadata

Package metadata

Package key	brew:rmcast
Version	2.0.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/rmcast
Homepage	https://web.archive.org/web/20250722003825/https://www.land.ufrj.br/tools/rmcast/rmcast.html
Upstream docs	https://web.archive.org/web/20250722003825/https:/www.land.ufrj.br/tools/rmcast/rmcast.html
License	QPL-1.0
Source archive	https://web.archive.org/web/20250621130503/https://www.land.ufrj.br/tools/rmcast/download/rmcast-2.0.0.tar.gz
Last updated	2026-05-19T07:51:07-04:00
Pulse	updated
Build dependencies	autoconf, automake, libtool
Bottle	available (on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	rmcast
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	yes
Disabled	no
Keg Only	no
URL Keys	stable

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/rmcast.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
package relationship graph
package version freshness
package-page enrichment

Install rmcast with Homebrew