474 CHAPTER 30: CONFIGURING BGP
[RouterC-Serial0] ip address 193.1.1.1 255.255.255.0
dConfigure Serial 1
[RouterC-Serial0] interface serial 1
[RouterC-Serial1] ip address 194.1.1.1 255.255.255.0
[RouterC-Serial1] ospf enable area 0
4Configure Router D:
aConfigure BGP peers
[RouterD] bgp 200
[RouterA-bgp] undo synchronization
[RouterD-bgp] peer 194.1.1.1 as-number 200
bEnable OSPF
[RouterD] ospf enable
cConfigure Serial 0
[RouterD-ospf] interface serial 0
[RouterD-Serial0] ip address 194.1.1.2 255.255.255.0
[RouterD-Serial0] ospf enable area 0
View BGP routing table on Router B with display bgp routing-table
command. Note that Router B knows that network 1.0.0.0 exists.
[RouterB] display bgp routing-table
View BGP routing table on Router C with display bgp routing-table
command. Note that Router C knows that network 1.0.0.0 exists.
[RouterD] display bgp routing-table
Configuring BGP Path
Selection This example describes how the administrator manages the routing with the BGP
attribute. All routers are configured with BGP. OSPF is used by IGP in AS200.
Router A is in AS100, functioning as the BGP peer of Router B and Router C in
AS200. When Router B and Router C run IBGP to Router D, Router D is also in
AS200.
network next hop metric localpref
1.0.0.0 192.1.1.1 0
network next hop metric llocalpref
1.0.0.0 194.1.1.1 0 100