The company set up headquarters in shangqiu, in Beijing, Shanghai, xian, zhengzhou and wuhan respectively set up branch company, now six departments have set up the local area network (LAN), and each department's computers are under 30, the company applied for a network address 202.5.13.0, in order to ensure that six departments of local area network (LAN) a computer can communicate, give the scheme of dividing branch

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