Chapter 2 Advanced Routing for FortiOS 5.0 : Border Gateway Protocol (BGP) : Dual-homed BGP example : Configuring the FortiGate unit : Add the internal network to the AS
  
Add the internal network to the AS
The Company is one AS with the FortiGate unit configured as the BGP border router connecting that AS to the two ISPs ASes. The internal network in the Company’s AS must be defined. If there were other networks in the company such as regional offices, they would be added here as well.
To set the networks in the AS - web-based manager
1. Go to Router > Dynamic > BGP.
2. In Networks, set the following information and select OK.
IP/Netmask
10.11.101.0/255.255.255.0
To set the networks in the AS - CLI
config router bgp
config network
edit 1
set prefix 10.11.101.0 255.255.255.0
next
end
end