OSPF-Generated Default

OSPF behaves differently from RIP. The BGP 0/0 route cannot be passed into OSPF viaredistribution. OSPF has different hooks to let the protocol generate the 0/0 into the OSPF atany time, or even better, if the presence of a 0/0-default route is detected in the IP routingtable. Now apply this behavio...

RF Signal Concepts

A major difference between wireless and wired networks is that wireless LANs use radio waves to transport information through the air. This introduces several new concepts, especially dealing with RF signals. When you are deploying wireless LANs, you must understand the attributes associated with RF...

Making the Backbone Reliable

Reliability can be acquired by employing two methods. First, you can create more reliable routers through the use of "carrier-class" characteristics, such as multiple CPUs, power supplies, and generators; and even redundant routers. Ultimately, however, any backbone will include WAN links that rely ...

Using the Small Servers

The finger command is a simple utility that allows you to do the equivalent of a show users command on a remote router. Unix computers generally have a standard finger program that you can run as follows: Freebsd% finger @Router1 [Router1]     Line     &n...

Using Virtual Templates

Virtual templates provide another way of configuring a central dialup host router: dialhost#configure terminal Enter configuration commands, one per line.  End with CNTL/Z. dialhost(config)#username Router1 password dialpassword dialhost(config)#interface BRI0/0 dialhost(config-if)#no ip...

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