Gateway is layer 4. Router is layer 3. Thanks.

NLA is responsible for "network devices resolution". For more information look here: http://blogs.technet.com/b/networking/archive/2010/09/08/network-location-awareness-nla-and-how-it-relates-to-windows-firewall-profiles.aspx Regards Milos

Hi, Gateway address is an IP address for a network interface on a router that leads to a larfer network. The gateway operates at the Network layer (Layer 3) of the OSI Model. The gateway is used when transmitting packets. When packets are sent over a network, the Destination IP address is examined. If the Destination IP is outside of the network, then the Packet goes to the gateway for transmission outside of the network. The gateway is on the same network as the end devices. The gateway address must have the same Subnet Mask as the host devices. Each host on the network uses the same gateway. The gateway should have a static address as changing the address would cause packets to not be delivered. The gateway is typically assigned either the highest or lowest address on the network. This is not a requirement, but many organizations use a consistent addressing scheme to make network planning easier.Kim Zhou TechNet Community Support