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[lwip-devel] [task #6995] Implement SO_REUSEADDR

From: Jonathan Larmour
Subject: [lwip-devel] [task #6995] Implement SO_REUSEADDR
Date: Thu, 29 Nov 2007 01:44:42 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.13) Gecko/20060513 Fedora/1.0.8-1.1.fc3.1.legacy Firefox/1.0.8

Follow-up Comment #6, task #6995 (project lwip):

You should be able to bind to - it is meant to have the same
meaning as INADDR_ANY. From the ip(7) manpage on linux:
       There are several special addresses: INADDR_LOOPBACK (
always refers to the local host via the
       loopback device; INADDR_ANY ( means any address for binding;
       means any host and has the same effect on bind as INADDR_ANY for
historical reasons.

In order to send/receive broadcast datagrams, instead in POSIX the
SO_BROADCAST flag is used: 

Although that link only says "transmission" and my Linux man page says: "When
enabled, datagram sockets receive packets sent to a broadcast address and they
are allowed to send packets to a broadcast address."


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