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 behavior to the example shown in Figure 8-4.page 223 Figure 8-4. Injecting the 0/0 default into OSPF RTD and RTC receive the 0/0 route via EBGP or point a static default toward th..
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 signals in order to configure access points, avoid RF interference, and troubleshoot problems as they arise. The key RF signal attributes that you need to understand are as follo..
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 on a great deal of equipment and environmental stability for their operation, which represents a real risk of ultimate failure. If the carrier's up-time guarantees are not sufficie..
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 User Host(s) Idle Location ..
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 address dialhost(config-if)#encapsulation ppp dialhost(config-if)#dialer pool-member 1 dialhost(config-if)#isdn switch-type basic-ni dialhost(config-if)#isdn point-to-point-setup dialho..
