In the next few examples we'll discuss the BGP NEXT_HOP attribute and provide examples of ways to manipulate the NEXT_HOP value. Example 11-34 shows the BGP table for RTF. Example 11-34. BGP Table for RTF RTF#show ip bgp BGP table version is 8, local router ID is 192.68.5.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path * i172.16.1.0/24 172.16.2.254 0 ..
Open system authentication is the default mode that 802.11 uses to authenticate radio cards to an access point. In this mode, a radio card sends an authentication frame to the access point, and the access point returns an authentication response. This form of authentication does not offer any real security. It is mainly part of the standard as a baseline authentication method. When in the process of joining a network, the radio card completes open system authentication with ..
Before delving into the typical topologies, it is wise to understand the overall network design process. As with any systems design effort, network design is an exercise in meeting new and old requirements while working within certain constraints. These constraints include money, labor, technology, space, and time. In addition, there may be social or political constraints, such as the mandated use of certain standards or vendors. Economic constraints play a major role in an..
This recipe includes several important features. First, notice that we have configured dial backup using an ISDN BRI interface on this router. So we have to set up the ISDN configuration: Router1(config)#interface BRI0/0 Router1(config-if)#isdn switch-type basic-ni Router1(config-if)#isdn spid1 800555123400 5551234 Router1(config-if)#isdn spid2 800555123500 5551235 This site is connected to a National ISDN switch. So we have defined the switch type to be basic-ni. If this h..
Using Policy-Based Routing to Route Based on Application Type
These examples show how to route traffic based on protocol information rather than address information. The first example redirects HTTP packets that originate on any device in the range from 10.15.25.0 to 10.15.25.255. Access list 101 has two lines: Router(config)#access-list 101 deny tcp 10.15.25.0 0.0.0.255 any eq www Router(config)#access-list 101 permit tcp any any eq www The second line matches any TCP packets with any source or destination IP address, and with a desti..
