Explain why the IPv4 protocol requires other layers to provide reliability.

Segments are encapsulated into IP packets for transmission. Traditional Internet routers operate at the Network layer by examining Layer "�&�>��4p�|��m�Bks�����d��y&w�,kjj�Y YM�[�]��TN� IP can travel over different types of media. x��X]o7}_i��g����B*�VT�ZH�ԇh �$�6��{|�뱗�*�l�\_�o��D��*?>}u�♘�O�����ILrJ���V�yf�b����H�`]�3T�w��֋�U�IOv�6}x����݈�΄h��������ե�n�}~���ް��Vh�s�P���%],%�Oۂ�A f�Y&i�6Q�F�(a��r�R�*�NN�y�99{Rf���^*����n���4���a�6���$��PV����(}���������Ң�jN�f�̂j^,���N��X%a��f�S#�Y�a:9����m7W�iJ3-�}�%� ����nY���̈́� � w�zY�\�Kޙ�U͖^©�%�&5�C-�dH�YY�̵�0o�+��o�sQ��(��1B�Ť.VT3bu�����.�ײ\"�}+��&v=9�C[z�\Ccʌ�Z�R +"f�5�'�S The Network layer typically provides information about which Transport layer protocol is being used, as well as local checksums to ensure data integrity.

Different models ship with different ports.

IOS image file, stored in the Flash, contains the IOS. IP (Internet Protocol) does most of the work in the TCP/IP protocol suite.

endobj Remote destinations can’t be reached directly. • Explain why the IPv4 protocol requires other layers to provide reliability. Flow Label field makes it more efficient. Explain why the IPv4 protocol requires other layers to provide reliability. show ip interface – Displays the IPv4 statistics for all interfaces on a router. All protocols and applications within the TCP/IP suite run on top of IP and utilize it for logical Network layer addressing and transmission of datagrams between internet hosts.

It also contains which interface to use to reach that specifc destination. ���lÒ-V����˲\�I��Hw�Y )ʉ� �Y064S�W�׈2�y����T�e�"�X�e��G�*b�U@�N��u��W������ ���C�*��8/ݤ��s�oi��Pi� HR-�N��%�U���t!v�f��n��A.�T&�J�d��*W&=��ȓ���gnLf��ϝ� ����GI��y� k�?���n��`��F"��̵����T,"�N#}Lh��j��bX���&Έ�d�w����>��+��- ������!�ȓU�s3��HV��g���2��/�"5�jB�4��t��.��N�D�xJ��MeD � ���%��L��%6��x�$�K�&bJ�xKI �C��i*G�GN ��Pr�'�#/��,�lfչƷ͒U�P�-,�(��X���`��H!

IP maps to the Internet layer of the DoD and to the Network layer of the OSI models. A common NCP is Internet Protocol Control Protocol (IPCP). Almost all link-layer protocols encapsulate each network-layer datagram within a network-layer datagram is inserted, and a number of header fields. Hosts will use the default gateway when sending packets to remote networks. Add a description to the Interface (optional), Activate the interface with a no shutdown command. Remote routes contain the address of the intermediate network device to be used to reach the destination.

Use the ip default-gateway command to configure the default gateway for a switch. 2 0 obj

Devices on directly connected networks can be reached directly.

Network layer!

<> The router routing table also has information on: how the route was learned, its trustworthiness and rating.

Configure devices to use the default gateway. 2 Data Link MAC Address Hardware Address= 00-0C-F1-5E-BE-F2 A default gateway is required for remote network communication. <>>> • on sending side encapsulates segments into datagrams! Explain the role of the major header fields in the IPv4 and IPv6 packet. Configure initial settings on a Cisco IOS router. PPP enables the simultaneous use of multiple network layer protocols. endobj Ethernet is very common on different router models.

1 0 obj The router routing table stores network routes the router knows about. Enter the interface sub-configuration mode. 6.1 Network Layer Protocols. Use the netstat –r command to display the. • router examines header fields in all IP datagrams passing through it!!! Compare a host routing table to a routing table in a router.

Devices on remote networks are reached through gateway. Describe the boot-up process of a Cisco IOS router. Routers have may ports to support connections.

Explain how devices route traffic in a small to medium-sized business network. <> Has a local IP address in the same address range as other hosts on the network.

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Explain the role of the major header fields in the IPv4 and IPv6 packet. • network layer protocols in every host, router! Sender doesn’t know if the receiver is listening or the message arrived on time.

• Explain the role of the major header fields in the IPv4 packet.

4 0 obj 6.2 Routing.

Perform the POST and load the bootstrap program. endobj

Routers and hosts forward packets in a similar fashion. Use the show ip route command to display the routing table on a Cisco router. Configure a router with basic configurations. Flow Label = same flow will receive same handling. This address is technically called the media access control address (MAC) because it is found on the MAC sub layer of the Data Link layer.

Internet Protocol (IP) and Internet Packet Exchange (IPX) are examples of Network layer protocols.

• The network interface card address, called the hardware address, is protocol-independent and is usually assigned at the factory. application! C – Identifies a directly-connected network, automatically created when an interface is configured with an IP address and activated.

The NVRAM stores configuration parameters. Three types of destination: itself, local host, remote host. Protocol = Upper layer protocol such as TCP, Destination IP Address = destination of packet. Modules 1 – 3: Basic Network Connectivity and Communications Exam Answers, Modules 4 – 7: Ethernet Concepts Exam Answers, Modules 8 – 10: Communicating Between Networks Exam Answers, Modules 11 – 13: IP Addressing Exam Answers, Modules 14 – 15: Network Application Communications Exam Answers, Modules 16 – 17: Building and Securing a Small Network Exam Answers, Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers, Modules 5 – 6: Redundant Networks Exam Answers, Modules 7 – 9: Available and Reliable Networks Exam Answers, Modules 10 – 13: L2 Security and WLANs Exam Answers, Modules 14 – 16: Routing Concepts and Configuration Exam Answers, Modules 1 – 2: OSPF Concepts and Configuration Exam Answers, Modules 3 – 5: Network Security Exam Answers, Modules 9 – 12: Optimize, Monitor, and Troubleshoot Networks Exam Answers, Modules 13 – 14: Emerging Network Technologies Exam Answers, Modules 18 – 20: Network Defense Group Exam (Answers), CCIE/CCNP 350-401 ENCOR Dumps Full Questions with VCE & PDF.

%PDF-1.5 The network layer adds a header so packets can be routed to the destination. Configure two active interfaces on a Cisco IOS router. L – Identifies that this is a local interface.

If a switch is to be managed via its VTY lines, it needs a default gateway. Describe the common components and interfaces of a router. Routers contain RAM, ROM, NVRAM and Flash memory. 3 0 obj