IP Multicast Basic Addressing
Class D address (high-order three bits are set) Range from 224.0.0.0 through 239.255.255.255 Well-known addresses assigned by IANA Reserved use 224.0.0.0 through 224.0.0.255 - 224.0.0.1 (all multicast systems on subnet) - 224.0.0.2 (all routers on subnet) - 224.0.0.4 (all DVMRP routers) - 224.0.0.13 (all PIMv2 routers) - 224.0.0.5, 224.0.0.6, 224.0.0.9, and 224.0.0.10 used by unicast routing protocols Multicast IP addresses use the Class D address space and are denoted by the high-order three...
Student Guide
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Comparing OSPF for IPv6 to OSPFv2
This topic explains the similarities and differences between OSPF for IPv6 to OSPFv2. - Based on OSPFv2, with enhancements OSPFv3 and OSPFv2 can be run concurrently, because each address family has a separate SPF (ships in the night). OSPFv3 uses the same basic packet types as OSPFv2 - Link state acknowledgment (ACK) Although most of the algorithms of OSPFv2 are the same as those of OSPFv3, some changes have been made in OSPFv3, particularly to handle the increased address size in IPv6 and the...
Specifies the default router for the pool to use
The following are tasks for configuring a Cisco IOS DHCP server Configuring a DHCP database agent or disabling DHCP conflict logging Configuring a DHCP address pool (required) Enabling the Cisco IOS DHCP server and relay agent features Configuring manual bindings Configuring a DHCP server boot file Configuring the number of ping packets and timeout Enabling the Cisco IOS DCHP client on Ethernet interfaces Performing a DHCP server options import and autoconfiguration Configuring the relay agent...
Module Self Check
Use the questions here to review what you learned in this module. The correct answers and solutions are found in the Module Self-Check Answer Key. Q1) On what does BGP base the selection of the best path (Source Explaining BGP Concepts and Terminology) C) number of routers to reach a destination network Q2) Which routing method best describes BGP (Source Explaining BGP Concepts and Terminology) D) hybrid of link-state and distance vector Q3) Which two conditions are valid reasons to run BGP in...
Describing IPv6 Routing
This topic describes the modifications that need to be made to existing routing protocols in IPv6 networks. The ipv6 unicast-routing command is required to enable IPv6 before 2006 Ci-co Systems, Inc. All As does IP version 4 (IPv4) classless interdomain routing (CIDR), IPv6 uses longest-prefix match routing. Recent protocol versions handle longer IPv6 addresses and different header structures. Currently, the updated routing protocols shown in the figure are available. Static routing with IPv6...
Example BGP Is Designed to Implement Policy Routing
In the example in this figure, assume that 35 percent of all traffic from AS 65001 has been going to www.cisco.com. The administrator can obtain the Cisco address or AS number by performing a reverse Domain Name System (DNS) lookup or by going to www.arin.net and looking up the AS number of Cisco Systems or the address space that is assigned to the company. After this information has been determined, the administrator uses local preference and route maps to manipulate path selection for the...
Defining an Ospf Ipv6 Area Range
To consolidate and summarize routes at an area boundary use the area area-id range ipv6-prefix prefix-length advertise not-advertise cost cost IPv6 OSPF router command. This is an example Router(config) ipv6 router ospf 1 Router(config-rtr) area range 1 2001 0DB8 48 The cost of the summarized routes will be the highest cost of the routes being summarized. For example, if the following routes are summarized via FE80 A8BB CCFF FE00 6F00, Ethernet0 0 via FE80 A8BB CCFF FE00 6F00, Ethernet0 0 2006...
