Module 12: Routing Fundamentals

Routing Overview Configuring Routing and Remote Access as a Router Quality of Service

Lesson 1: Routing Overview What Are Static and Dynamic Routing? How the IP Protocol Selects a Route Demonstration: Viewing a Routing Table Discussion: Troubleshooting Tools for Routing

What Are Static and Dynamic Routing? Statically configured routers: Do not automatically discover the IDs of remote networks Do not exchange information with other routers Are not fault-tolerant Dynamically configured routers: Discover the IDs of remote networks automatically Use a routing protocol to exchange information with other routers Can be fault-tolerant

How the IP Protocol Selects a Route IP creates packet Searches routing table for destination address Locates host address matching destination address? Transmits packet to the designated gateway Generates an error message Transmits packet to the designated gateway No Yes No Locates a default gateway address? ?? Locates network address matching destination address? ?

Demonstration: Viewing a Routing Table In this demonstration, you will see how to view a routing table

Discussion: Troubleshooting Tools for Routing What are some tools that can be used to troubleshoot routing?

Lesson 2: Configuring Routing and Remote Access as a Router Routing and Remote Access Routing Roles Routing Protocols Configuration Options for an Interface Information Available for an Interface Demonstration: Configuring RRAS as a LAN Router

Routing and Remote Access Routing Roles Routing roles include the following: Routing roleDescription LAN router Can route IPv4 and IPv6 packets between network segments Demand-dial Automatically create a connection to a remote location by using dial-up networking or a VPN connection NAT Perform NAT and allow computers to access the Internet by sharing a single Internet addressable IPv4 address

Routing Protocols Routing protocols include the following: Routing Protocol Description DHCP Relay Agent Allows a Routing and Remote Access server to relay DHCP requests to a DHCP server on a remote network. IGMP Router Proxy Allows a Routing and Remote Access server to act as an IGMP router or proxy for multicast traffic NAT Allows a Routing and Remote Access server to act as a NAT router to share a single IPv4 address. RIP Version 2 for Internet Protocol Allows a Routing and Remote Access router to perform dynamic routing with other RIP routers. DHCPv6 Relay Agent Allows a Routing and Remote Access server to relay DHCP request to a DHCPv6 server on a remote network.

Configuration Options for an Interface Interface configuration options include the following: Configuration Option Description IP Router ManagerEnables or disables TCP/IP for the Interface Router Discovery Advertisements Clients use router discovery advertisements to dynamically discover default gateways Inbound/Outbound filters Filters similar to Windows Firewall Fragmentation checking Specifies whether filtering is performed on packet fragments Multicast boundaries Configures Time to Live for multicast traffic Multicast heartbeat detection Used to confirm that multicast infrastructure is functioning properly

Information Available for an Interface Available interface information includes the following: Interface information Description TCP/IP Information Statistics such as number of packets sent and received Address Translations Translations from IP address to physical address IP AddressesIP addresses that are bound to this computer IP Routing Table Host and network routes in the routing table of this computer TCP connectionsActive connections and listening TCP ports UDP listener ports A list of UDP ports listening to accept UDP packets

Demonstration: Configuring RRAS as a LAN Router In this demonstration, you will see how to configure Routing and Remote Access as a LAN router

Lesson 3: Quality of Service What Is Quality of Service? What Is a QoS Policy? Discussion: QoS Scenarios Architecture of Policy-based QoS Demonstration: Creating a QoS Policy

What Is Quality of Service? Quality of Service (QoS): Prioritizes network traffic for network routing by adding a DSCP value Uses throttling to limit bandwidth usage on a host Can be based on: Sending application Source or destination IPv4 or IPv6 addresses Protocol (TCP or UDP) Source or destination ports

What Is a QoS Policy? A QoS policy: Is defined as part of a Group Policy Can be applied to users or computers Can include specific IPv4 or IPv6 addresses or networks to apply to Lets you define a DSCP value for network traffic Lets you define a throttle rate for network traffic

Discussion: QoS Scenarios What are some scenarios where DSCP values and bandwidth throttling can be used?

Architecture of Policy-based QoS

Notes Page Over-flow Slide. Do Not Print Slide. See Notes pane.

Demonstration: Creating a QoS Policy In this demonstration, you will see how to create a QoS Policy

Lab: Configuring Routing Exercise 1: Configuring a LAN Router Exercise 2: Implementing RIPv2 Exercise 3: Configuring a Demand-dial Router Exercise 4: Configuring QoS Logon information Virtual machine NYC-DC1, NYC-RAS, NYC-SVR1 User name Administrator Password Pa$$w0rd Estimated time: 60 minutes

Lab Review What effect does the option -4 have when using the route print command? How is a demand-dial connection triggered?

Module Review and Takeaways Review Questions Common Issues and Troubleshooting Tips Real-world Issues and Scenarios Tools