network layers การใช้

• These kinds of functionality must then be provided by higher network layers.
• Network layer firewalls generally fall into two sub-categories, stateless.
• The network layer service is defined by a Set procedures.
• It requires less resources and often accompanies network layer attacks.
• PPP permits multiple network layer protocols to operate on the same communication link.
• The protocol ( network layer ) address is that of the destination host.
• Gateways, also called protocol converters, can operate at any network layer.
• Internetworking is implemented in the Network Layer ( Layer 3 ) of the model.
• Thus the source quench ICMP message acts as flow control in the network layer.
• GRE uses the same mechanism that OSI uses for tunneling at the network layer.
• The network layer is intended to route packets through the network toward their destination.
• The ZigBee network layer natively supports both routers to extend communication at the network level.
• My question is how can this be if they are both at the network layer?
• Vulnerabilities exist at network layers, however, that are not visible to a stateful firewall.
• The first commercial network layer encryption device was the Motorola Network Encryption System ( NES ).
• Hence some remedial measures should be taken by the network layer to avoid these kind of situations.
• It is typically measured at a reference point below the network layer and above the physical layer.
• Additionally, as with all IP-based protocols, IPsec can operate at the network layer.
• Convergence layer takes care of service dependent functionality between DLC and Network layer ( OSI 3 ).
• IGMP operates on the network layer, just the same as other network management protocols like ICMP.