一个网吧，xp作服务器，10台客户机，但是只有4台（3,8,9,10号）机能进xiliao聊天室的同一个房间，其他的5台不能同时进，报错ip地址相同。
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How many public ip address you have, 1?
Because all the clients are using the same public ip(your winxp server) to access the internet, and the website has the restriction of not allowing more the 4 session from the same ip address. therefore...