External wireless modems are connect cards, USB modems for mobile broadband and cellular routers. Ethernet cables are interconnected via switches & routers. Wireless mesh networks often consist of mesh clients, mesh routers and gateways. The network layer is responsible for packet forwarding including routing through intermediate routers. Linksys manufactures a series of network routers. MIPS processors are used in embedded systems such as residential gateways and routers. Manual setup is available for wireless routers, NAS devices and other platforms. These products comprise a number of wireless routers and wireless cards. Routers, servers and end hosts (e.g. personal computers) have uplink ports. It can be used on networks in conjunction with routers and switches. Conventional Internet routers and LAN switches operate on a best effort basis. Unlike in IPv4, IPv6 routers (intermediate nodes) never fragment IPv6 packets. DHCPv6 prefix delegation provides a mechanism for configuring such routers. This resulted in slower growth of routing tables in routers. The application is free for customers of current Netgear routers.