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What is the basic difference between SGSN and GGSN in gprs?
SGSN - Serving GPRS Support Network GGSN - Gateway GPRS support node. GGSN is like GMSC. Group of SGSN controlled by 1 GGSN.
Meaning of gateway communication?
Gateway it is the only way to get away
What is the difference between RARP and DHCP protocols?
RARP help the PC to find its MAC address in the same network from the RARP Server.RARP Serveronly providethe IP adress to the PC by remembering its MAC.DHCP works on the same way but DHCP Server provide the PC its IP address, Subnetmask, Default Gateway and DNS Server etc...So the big difference is DHCP provide more information than your RARP Server.
What is a default gateway?
A gateway is a node (a router) on a computer network that serves as an access point to another network.A Default Gateway is the node on the computer network that is chosen when the IP address does not belong to any other entities in the Routing Table. In homes, the gateway is usually the ISP-provided device that connects the user to the internet, such as a DSL or cable modem. In enterprises, however, the gateway is the node that routes the traffic from a workstation to another network segment. The default gateway is commonly used to be the node connecting the internal networks and the outside network (Internet). In such a situation, the gateway node could act as a proxy server and a firewall. The gateway is also associated with both a router, which uses headers and forwarding tables to determine where packets are sent, and a switch, which provides the actual path for the packet in and out of the gateway. In other words, it is an entry point and an exit point in a network.
What is the purpose of a default gateway?
identifies the device that allows local network computers to communicate with devices on other networks Gateway describes the networking device that enables data to enter and exit a LAN, and is where the host computers forward data packets that need to exit the LAN.
