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Fix for incorrect SAP packets TTL

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This fixes issue #25
This commit is contained in:
Andrea Bondavalli 2020-11-25 12:46:51 +01:00
parent 3fa3be6aaa
commit f1dcd96e42
1 changed files with 8 additions and 0 deletions
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8
daemon/sap.cpp
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@ -51,6 +51,14 @@ bool SAP::set_multicast_interface(const std::string& interface_ip) {
BOOST_LOG_TRIVIAL(error) << "sap::enable_loopback option " << ec.message(); BOOST_LOG_TRIVIAL(error) << "sap::enable_loopback option " << ec.message();
return false; return false;
} }
/* https://tools.ietf.org/html/rfc2974 ttl = 255 */
boost::asio::ip::multicast::hops ttl_option(255);
socket_.set_option(ttl_option, ec);
if (ec) {
BOOST_LOG_TRIVIAL(error) << "sap::hops/ttl option " << ec.message();
return false;
}
return true; return true;
} }