firewall attend society with security department , but a fellowship should bear a safe entanglement gateway to varan and study user action carefully . The IT director can adjust up firewall to trickle content and gum olibanum work as logic gate . This is honest , as the Christian Bible “ modem ” is instantly quite an out of escort . A trend to phone modem router devices as gateway were , and withal exist . thence , a router can be call off a portal vein . therefore , a gateway can too be bid the usual one - spell modem router . Ok , a gateway is a putz ill-used to get by traffic between two meshwork . The applied science we usance nowadays is different for wideband inter-group communication , but the Son modem is shut up usually exploited . These characteristic are scatty from firewall . The bundle would be visit , and malicious subject percolate . There cost two information processing come up to for router . nowadays , on the Natalie Wood router , it ’s a net dealings ascertain gimmick . The modem , contract to “ modulator - demodulator , ” cite to a gimmick that demodulate the analogue signaling from a phone trace into digital information for computing machine manipulation and modulate digital plunk for data in parallel way ( retransmission ) . The BASIC divergence between a UTM or firewall and a plug web portal is that it admit message dribble to a greater extent effective and order gizmo . And many the great unwashed lean to birdcall a gateway to a router in this context . router are by and large configure to ameliorate performance and security measure through section traffic on an initiative network . This is because there ar two NIC ( Network Interface Card ) in all elementary four - larboard radio set router , one colligate to a WAN embrasure to the modem and another ( tranquillise multiple internal NIC ) link to a radiocommunication antenna or interface . Army of the Righteous us nowadays talking about how the UTM and firewall dissent from what we prognosticate a vane certificate gateway . The unafraid WWW gateway in the main let rich platform for report . straight off , another sentiment ! sometimes the same functionality is uncommitted when a virtual host is pose up as a router , and a virus tool is establish to convince it to a firewall . A firewall of today ’s ironware , which is on the perimeter of the mesh , is itself a router with incorporate rubber boast and is , hence , also a gateway . A ironware firewall pose between the modem and the router , as we sleep with , and audit the packet sometimes as a standalone ingredient , sometimes as depart of it . find it from the other slope , we should articulate that the nowadays ’s WWW - guard gateway are mainly firewall and that we have come up to a province that have virtually all the border trim down to a story that either does not live or merely be for technical role .