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hints:routing [2020/09/22 21:11] – [Removing default from IBGP] philiphints:routing [2020/09/22 21:12] (current) – [Complete Configuration] philip
Line 121: Line 121:
  match ip address prefix-list DEFAULT  match ip address prefix-list DEFAULT
  match ip next-hop BGP-NH  match ip next-hop BGP-NH
 +!
 +route-map EBGP-in permit 5
 + description Do not propagate default route
 + match ip address prefix-list DEFAULT
 + set community no-advertise
 +!
 +route-map EBGP-in permit 10
 + description Other policy
 + ...
 +!
 +</code>
 +
 +For BR2 (making BR2 the //backup// default gateway):
 +
 +<code>
 +router isis ISP
 + ...
 + default-information originate route-map DEFAULT-ORIG
 +!
 +router bgp 64512
 + address-family ipv4
 +  neighbor 10.10.20.1 route-map EBGP-in in
 +  distance bgp 20 200 200
 +!
 +ip access-list standard BGP-NH
 + remark External BGP speaker
 + permit 10.10.20.1
 +!
 +ip prefix-list DEFAULT permit 0.0.0.0/0
 +!
 +route-map DEFAULT-ORIG permit 5
 + match ip address prefix-list DEFAULT
 + match ip next-hop BGP-NH
 + set metric 10
 ! !
 route-map EBGP-in permit 5 route-map EBGP-in permit 5
hints/routing.1600773116.txt.gz · Last modified: 2020/09/22 21:11 by philip