Believe that a lot of people are using notebook dell alienware pr2h1 series laptop cpu cooling fan, will use the wireless connection way, the previous network is concerned, there is no wireless router, now we want to be in the existing network increase into a wireless router, in order to ensure the notebook can through the wireless Internet, then how should we set up?
A, routers in the work process have a such characteristics, from LAN to WAN direction of data flow default not restricted by the router, from WAN to LAN direction default cannot pass, and wireless broadband router's wireless access part belong to the scope of the LAN, by default from local area network computer out on the packet comes into the router LAN mouth, can smoothly through the router from WAN mouth was sent out, but from this side of the WAN active over packet into WAN after mouth, the router the default is not to let those packets through, this is the router's default firewall rules stopped foreign data access.
Second, when we want to in the existing network increase a wireless router have two different network mode, also is the second table routing take WAN port access network or the second table routing take LAN dell inspiron 1520 series laptop cpu cooling fan port access network.
1, wireless router WAN port access, this kind of means has a defect wireless router connected to computer are unable to access the big local area network other computer, benefit is that it is a closed internal environment, safety better.
Connection way is to wireless router will big LAN signal is introduced into the router, the router distribution and small LAN IP address range to give it the connected computers, these a few computer form a big LAN internal little LAN.
2, wireless router LAN port access, this kind of means can visit other big local area network computer, wireless router is equivalent to the effect of wireless switch, all the subordinate computer and other big computer local area network communication.
Connection way is to wireless router will big LAN signal is introduced into the router, and then router distribution big LAN IP address to give it the connected computers, these a few computer dell inspiron 4000 laptop cpu cooling fan into big LAN as a whole.
Three, the first kind of way suitable for as long as the Internet don't internal office people use, the second method suitable for needs and internal computer connection with people in the office use, the two methods are not suitable for family use, because home computer as long as a wireless router can, of course, some people home have a desktop at that time to buy cable routing access, if you home wall line interface this is can use the above method.
Conclusion: the first kind of way need to define WAN mouth and big LAN, LAN mouth DHCP scope, don't and large LAN IP, the second method can not define WAN port configuration, as long as the dell inspiron 6000 series laptop cpu cooling fan definition LAN mouth DHCP scope and big LAN IP, and through the second method can wireless notebook into big LAN environment, if the routing security bad may be illegal attack breakthrough point.
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