CREATING A REMOTE ACCESS POLICY FOR DOMAIN ADMINISTRATORS IN THIS PROC...

3. - MICROSOFT PRESS MCSA MCSE SELF PACED TRAINING KIT EXAM 70 - 293 PHẦN 4 PPT 3. - MICROSOFT PRESS MCSA MCSE SELF PACED TRAINING KIT EXAM 70 - 293 PHẦN 4 PPT
MICROSOFT PRESS MCSA MCSE SELF PACED TRAINING KIT EXAM 70 - 293 PHẦN 4 PPT

3.

Check the RIP timing interval settings.

By default, the RRAS RIP implementation transmits update messages every 30 sec­

onds, and RRAS removes RIP entries from the routing table if they are not

refreshed at least every 20 minutes (1200 seconds). If you decide to modify these

defaults (as a bandwidth conservation measure), make sure that the Periodic

Announcement Interval value is lower than the Time Before Route Is Removed

setting. Otherwise, RRAS will remove entries from the table before they have a

chance to be refreshed.

Tip

If you change the RIP timing interval settings on one router, you should change them on

all the other RIP routers in the same way.

Troubleshooting OSPF

As with RIP, when you click the OSPF subheading in the Routing And Remote Access

console tree, the details pane shows the number of OSPF packets the router has sent

and received, so you can tell if the protocol is functioning. If the router is not sending

Lesson 4 Troubleshooting TCP/IP Routing

5

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or receiving OSPF packets, the first thing to check is whether OSPF is enabled on each

of the interfaces you installed. Display the Properties dialog box for each interface and

check to see that the Enable OSPF For This Address option button is selected.

If OSPF is enabled on the interfaces and your routers are still not communicating, it is

time to check whether each router is configured in accordance with your OSPF deploy­

ment plan. Unlike RIP, which requires little or no configuration, an OSPF deployment

requires you to make decisions such as how many areas you want to create, and which

routers will handle the communication between areas by functioning as area border

routers. Make sure that you have configured each OSPF router on the network to per-

form its designated roles.

Lesson Review

The following questions are intended to reinforce key information presented in this

lesson. If you are unable to answer a question, review the lesson materials and try the

question again. You can find answers to the questions in the “Questions and Answers”

section at the end of this chapter.