On Fri, Jan 19, 2018 at 4:37 PM, shahrooz <shahrooz@cs.umass.edu> wrote:
> Thank you William, but I can not understand your email at all!
Here's what one of mine looks like (addresses changed):
router bgp 65000
bgp router-id 1.2.3.4 bgp log-neighbor-changes
neighbor 169.254.169.254 remote-as 64515
neighbor 169.254.169.254 description Vultr upstream
neighbor 169.254.169.254 next-hop-self
neighbor 169.254.169.254 route-map vultr-bgp-in in
neighbor 169.254.169.254 route-map vultr-bgp-out out
neighbor 10.0.0.1 remote-as 65000
neighbor 10.0.0.1 description Tron
neighbor 10.0.0.1 next-hop-self
neighbor 10.0.0.1 route-map tron-bgp-out out
neighbor 10.1.0.1 remote-as 65000
neighbor 10.1.0.1 description Cloud
neighbor 10.1.0.1 next-hop-self
neighbor 10.1.0.1 route-map cloud-bgp-in in
neighbor 10.1.0.1 route-map cloud-bgp-out out
neighbor 10.2.0.1 remote-as 65000
neighbor 10.2.0.1 description Laharl
neighbor 10.2.0.1 next-hop-self
ip prefix-list from-transit seq 5 deny 199.33.224.0/23 le 32
ip prefix-list from-transit seq 25 deny 10.0.0.0/8 le 32
ip prefix-list from-transit seq 30 deny 127.0.0.0/8 le 32
ip prefix-list from-transit seq 35 deny 172.16.0.0/12 le 32
ip prefix-list from-transit seq 40 deny 192.168.0.0/16 le 32
ip prefix-list from-transit seq 45 deny 0.0.0.0/0
ip prefix-list from-transit seq 50 permit 0.0.0.0/0 le 32
ip prefix-list to-cloud seq 45 deny 0.0.0.0/0
ip prefix-list to-cloud seq 50 permit 0.0.0.0/0 le 16
ip prefix-list to-transit seq 10 permit 199.33.224.0/23
ip prefix-list to-transit seq 25 deny 0.0.0.0/0 le 32
ip as-path access-list 1 permit ^$
ip as-path access-list 1 deny .*
ip as-path access-list 10 permit .*
route-map vultr-bgp-in permit 10
match ip address prefix-list from-transit
set local-preference 120
!
route-map vultr-bgp-in deny 20
match as-path 10
!
route-map vultr-bgp-out permit 10
match as-path 1
match ip address prefix-list to-transit
!
route-map vultr-bgp-out deny 20
!
route-map cloud-bgp-in permit 10
match as-path 10
set as-path prepend 65000 65000
set local-preference 80
!
route-map cloud-bgp-in deny 20
match as-path 10
!
route-map cloud-bgp-out permit 10
match as-path 10
match ip address prefix-list to-cloud
set local-preference 80
!
route-map cloud-bgp-out deny 20
!
route-map tron-bgp-out permit 10
match as-path 10
set local-preference 80
!
route-map tron-bgp-out deny 20
!
--
William Herrin ................ herrin@dirtside.com bill@herrin.us
Dirtside Systems ......... Web: <
http://www.dirtside.com/>
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