R2#sh run | b router bgp
router bgp 230
 no synchronization
 bgp router-id 2.2.2.2
 bgp log-neighbor-changes
 neighbor 2005:0:102:0:2D0:58FF:FE7D:1860 remote-as 140
 no neighbor 2005:0:102:0:2D0:58FF:FE7D:1860 activate
 neighbor 2005:0:237:0:212:7FFF:FE7D:3A00 remote-as 230
 no neighbor 2005:0:237:0:212:7FFF:FE7D:3A00 activate
 neighbor 2005:0:702:0:212:7FFF:FE8D:3CC0 remote-as 700
 no neighbor 2005:0:702:0:212:7FFF:FE8D:3CC0 activate
 neighbor 2005:0:1203:0:212:7FFF:FE7D:3A00 remote-as 230
 no neighbor 2005:0:1203:0:212:7FFF:FE7D:3A00 activate
 no auto-summary
 !
 address-family ipv6
 neighbor 2005:0:102:0:2D0:58FF:FE7D:1860 activate
 neighbor 2005:0:237:0:212:7FFF:FE7D:3A00 activate
 neighbor 2005:0:702:0:212:7FFF:FE8D:3CC0 activate
 neighbor 2005:0:702:0:212:7FFF:FE8D:3CC0 route-map ProbE out
 neighbor 2005:0:1203:0:212:7FFF:FE7D:3A00 activate
 network 2000:2:2::/64
 network 2005:0:1203::/64
 exit-address-family

!
ip as-path access-list 1 permit ^$

!
!
route-map ProbE permit 10
 match as-path 1
 set as-path prepend 230 230 230 230
!
route-map ProbE permit 20


R3#sh run | b router bgp
router bgp 230
 no synchronization
 bgp router-id 3.3.3.3
 bgp log-neighbor-changes
 neighbor 2005:0:237:0:212:7FFF:FE80:F4A0 remote-as 230
 no neighbor 2005:0:237:0:212:7FFF:FE80:F4A0 activate
 neighbor 2005:0:237:0:212:7FFF:FE8D:3CC0 remote-as 700
 no neighbor 2005:0:237:0:212:7FFF:FE8D:3CC0 activate
 neighbor 2005:0:1203:0:212:7FFF:FE80:F4A0 remote-as 230
 no neighbor 2005:0:1203:0:212:7FFF:FE80:F4A0 activate
 no auto-summary
 !
 address-family ipv6
 neighbor 2005:0:237:0:212:7FFF:FE80:F4A0 activate
 neighbor 2005:0:237:0:212:7FFF:FE8D:3CC0 activate
 neighbor 2005:0:237:0:212:7FFF:FE8D:3CC0 route-map ProbE out
 neighbor 2005:0:1203:0:212:7FFF:FE80:F4A0 activate
 network 2000:3:3::/64
 exit-address-family

!
ip as-path access-list 1 permit ^$

!
!
route-map ProbE permit 10
 match as-path 1
 set as-path prepend 230 230 230 230
!
route-map ProbE permit 20