Some of these routers are actually wired routers with wireless outdoor router access points built in so you can have wired and/or wireless at the same time. Another choice is a router with a built-in DSL or cable modem. You can also consider a hardware & software security combo box to connect and protect your home network or office network. The wireless device is capable of sharing Internet connections amongst several computers via 802.3 Ethernet and 802.11b/g wireless data links. There are many manufacturers of these wireless devices, popular of them are D-Link, Netgear, Actiontec etc. Out of these, the D-Link routers is what we find is the popular product outdoor routeramongst the home and commercial users. These routers have an uncanny ability that delivers superior performance capability to transfer large files and handle heavy network traffic. Routers are very much ideal for wireless networks in commercial or public areas, especially if there are multiple networks that are accessible. These routers if considered in an enterprise environment give network administrators an extra way to monitor and update their networks. Most of these routers offer many important benefits in the home and small office setting. For outdoor routerinstance, you can opt to a cable modem service that provides a single IP address through DHCP to the router, and the router then provides IP addresses via DHCP to clients on your local network. This helps to a great deal whenever that client needs to access the Internet. With this it combines multiple Ethernet networks with wireless connections as well. A typical wireless LAN router includes four Ethernet ports, an 802.11 access point, and sometimes a parallel port so it can function as a print server. This gives wireless users the same ability as wired users to send and receive packets over multiple networks. As these routers only send packets to specific, directed addresses, they do not forward the broadcast packets that are sent out by other devices. A big advantage of such routers is that they provide an added layer of security, both on the wired side and wireless side. The wired side is usually protected outdoor routerby a firewall and has extensive access control filters. That is why, not only the wireless routers are more user friendly and space saving, they are also great on speed, and have an ability to handle multiple networks with ease and without sacrificing the security. Packet filtering helps control packet movement through the network. Such control can help bound network traffic and limit network use by certain users or devices. To allow or reject packets from crossing specified router interfaces, we give access lists. Extended IP access lists use source and destination addresses for matching operations, as well as optional protocol type information for finer granularity of control. Keep in mind when making the standard and extended access list that by default, the end of the access list contains an inherent deny statement for everything if it did not find a match before reaching the end. Further, with standard access lists, if you omit the mask from an associated IP host address access list specification, 0.0.0.0 is assumed to be the mask. After an access list is created, you can apply it to one or more interfaces. Access lists can be applied on either outbound or inbound interfaces. The following two tables show how this task is accomplished for both terminal lines and network interfaces. For inbound access lists, after receiving a packet, the router checks the source address of the packet against the access list. If outdoor routerthe access list permits the address, the router continues to process the packet. If the access list rejects the address, the router discards the packet and returns an ICMP Host Unreachable message. For outbound access lists, after receiving and routing a packet to a controlled interface, the router checks the source outdoor routeraddress of the packet against the access list. If the access list permits the address, the router transmits the packet. If the access list rejects the address, the router discards the packet and returns an ICMP Host Unreachable message.http://www.billion.com/about/Solutions/Network|Telecom/Outdoor 4G|LTE Router