在这个表情包中，莫古头指着自己说：“你在跟我说话吗？”
In this meme, Mo Gutou is pointing to himself and saying "Are you talking to me?"
这些信息包有头，即在每个包前面所附带的一些数据位，它们包含有关信息包的源、目的地和协议类型的信息。
These packets have headers, i.e. bits of data prefixed to every packet that contain information about the packet's source, destination, and protocol types.
接下来，将信息包的头信息与它所传递到的链中的每条规则进行比较，看它是否与某条规则完全匹配。
Next the packet's header information is compared with each rule in the chain it is passed on to, unless it perfectly matches a rule.
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