[Bug 235927] FreeBSD does not reply to ICMP requests when assigned an ip in 240.0.0.0/8

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235927

--- Comment #6 from Loganaden Velvindron <logan at cyberstorm.mu> ---
(In reply to Rodney W. Grimes from comment #4)

There is a scheduled talk about this effort at netdev:
https://netdevconf.org/0x13/session.html?talk-ipv4-unicast-expansions

Linux has already accepted a patch to allow assignment of 240.0.0.0/4:
https://www.spinics.net/lists/netdev/msg540240.html

OpenWRT (major third party firmware) has accepted a similar patch:
https://git.openwrt.org/?p=project/netifd.git;a=commit;h=cd089c52de96e47cf99410f66701e04e24155b9a

A new ID will be submitted to the IETF soon. 
Please note that there were some attempts in the past in the IETF already:
https://tools.ietf.org/html/draft-fuller-240space-02

At the time it was perceived that ipv6 would take over faster. However, the
adoption of ipv6 has been slower than expected. 

See this thread also:
https://www.mail-archive.com/cerowrt-devel@lists.bufferbloat.net/msg05838.html

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