SN-2773 已核对来源，附原文与上下文。
最好默认禁用按 IP 收款，除非你明确打算用它。这是一大片无人使用的攻击面，没有必要默认开放。
Probably best to disable receiving by IP unless you specifically intend to use it. This is a lot of surface area that nobody uses that doesn't need to be open by default.
在商店场景下，你通常只想让顾客通过你的自动化系统付款，它只发放与特定订单和账户关联的 bitcoin 地址。随机、无身份的支付自愿发到服务器的 IP 地址上，没有任何用处。
In storefront cases, you would typically only want customers to send payments through your automated system that only hands out bitcoin addresses associated with particular orders and accounts. Random unidentified payments volunteered to the server's IP address would be unhelpful.
总的来说，按 IP 发送的实用场景有限。如果不经代理直连，中间人风险或许能容忍，但没有隐私。如果你用隐私代理，中间人风险则高得不可接受。如果我们费劲实现了 SSL，通常只大商家才愿意花功夫拿 CA 证书，而这些场景大多仍然用 bitcoin 地址更好。
In general, sending by IP has limited useful cases. If connecting directly without a proxy, the man-in-the-middle risk may be tolerable, but no privacy. If you use a privacy proxy, man-in-the-middle risk is unacceptably high. If we went to all the work of implementing SSL, only large storefronts usually go to the trouble of getting a CA cert, but most of those cases would still be better off to use bitcoin addresses.
我已把这个改动上传到 SVN rev 156。启用的开关是 "-allowreceivebyip"。
I uploaded this change to SVN rev 156. The switch to enable is "-allowreceivebyip".
用这个版本的发送方会得到错误 "Recipient is not accepting transactions sent by IP address"。旧版本的发送方会得到 "Transfer was not accepted"。
Senders with this version will get the error "Recipient is not accepting transactions sent by IP address". Older version senders will get "Transfer was not accepted".
我给开关用了不同的名字，因 "-allowiptransactions" 听起来像包含发送。如果这个开关有更好的名字，我们能再改。
I used a different name for the switch because "-allowiptransactions" sounds like it includes sending. If there's a better name for the switch, we can change it again.
