检测对等点是否正在使用 TCP keepalive (Windows)
Detecting if a peer is using TCP keepalives (Windows)
如果您连接的对等点正在使用 TCP keepalive，是否可以查明或收到通知？
发送keepalive时还要通知吗？
不求助于内核驱动程序中的数据包级过滤？
我们有一个插件代理，客户希望将客户端保活转发到服务器。目前我们最好的选择是允许在服务器端连接上设置 keepalive，但我想检查是否有人知道检测客户端行为的方法，以便可以更接近地近似中继 keepalive。
谢谢。
it possible to figure out, or be notified if a peer to whom you are connected is using TCP keepalives?
没有。 TCP keepalive 不使用协议扩展。它只是以特定的方式使用现有的协议来引起回应。
Furthermore to be notified when a keepalive is sent?
没有。无法识别 TCP 保活段。
Without resorting to packet-level filtering in a kernel driver?
即使你这样做也不行。
We have a plug proxy, and a customer wishes client keepalives to be forwarded to the server.
您的客户被误导了。
At the moment our best option I think is just to allow setting keepalives on the server-side connection
正确。
but I wanted to check if anyone knew a way to detect what the client behaviour was so that relaying of keepalives could be more closely approximated.
不可能。
如果您连接的对等点正在使用 TCP keepalive，是否可以查明或收到通知？
发送keepalive时还要通知吗？
不求助于内核驱动程序中的数据包级过滤？
我们有一个插件代理，客户希望将客户端保活转发到服务器。目前我们最好的选择是允许在服务器端连接上设置 keepalive，但我想检查是否有人知道检测客户端行为的方法，以便可以更接近地近似中继 keepalive。
谢谢。
it possible to figure out, or be notified if a peer to whom you are connected is using TCP keepalives?
没有。 TCP keepalive 不使用协议扩展。它只是以特定的方式使用现有的协议来引起回应。
Furthermore to be notified when a keepalive is sent?
没有。无法识别 TCP 保活段。
Without resorting to packet-level filtering in a kernel driver?
即使你这样做也不行。
We have a plug proxy, and a customer wishes client keepalives to be forwarded to the server.
您的客户被误导了。
At the moment our best option I think is just to allow setting keepalives on the server-side connection
正确。
but I wanted to check if anyone knew a way to detect what the client behaviour was so that relaying of keepalives could be more closely approximated.
不可能。