秘密在于(好吧，其实也不是什么秘密；只是一个经验丰富的管理员了解得很清楚但却忘了告诉你的一个事实)：每一台网络设备都有两个地址。
The secret (well, not really a secret; just a fact that veteran administrators know so well, they forgot to tell you) is this: every networked device actually has two addresses.
当然这不是因为我有必要告诉你什么，其实我懂的事你也都懂，这一点那个晚上在家中我就跟你说过了。
Not that I have any occasion to tell you anything, for you know everything I know - as I told you at home the other night.
当然这不是因为我有必要告诉你什么，其实我懂的事你也都懂，这一点那个晚上在家中我就跟你说过了。
Not that I have any occasion to tell you anything, for you know everything I know - as I told you at home the other night.
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