Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) - Manual (Page 220)

206 Brocade Virtual ADX Switch and Router Guide
53-1003246-01
Configuring BGP4
8
Figure 28 shows a topology for a null0 routing application example.
FIGURE 28 SAMPLE null0 routing application
Refer to “Configuring BGP4 null0 routing” on page 275 for an example of how to configure a null0
routing application to stop denial of service attacks from remote hosts on the Internet
Configuring BGP4
Once you activate BGP4, you can configure the BGP4 options. There are two configuration levels:
global and address family.
At the global level, all BGP4 configurations apply to IPv4 and IPv6. Enter this layer using the device
BGP4 command
Under the global level, you specify an address family. Address families separate IPv4 and IPv6
BGP4 configurations. Go to this level by entering the address-family command at the device BGP4
level. The command requires you to specify the IPv4 or IPv6 network protocol.
The address family command also requires you to select a sub-address family, which is the type of
routes for the configuration.