if (peer->protocol() == Protocol::LegacyProtocol) {
_legacy = true;
connect(peer, SIGNAL(protocolVersionMismatch(int,int)), SLOT(onProtocolVersionMismatch(int,int)));
if (peer->protocol() == Protocol::LegacyProtocol) {
_legacy = true;
connect(peer, SIGNAL(protocolVersionMismatch(int,int)), SLOT(onProtocolVersionMismatch(int,int)));