User Tools

Site Tools


hints:routing

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
Last revisionBoth sides next revision
hints:routing [2020/09/22 21:08] – [Conclusion] philiphints:routing [2020/09/22 21:11] – [Removing default from IBGP] philip
Line 78: Line 78:
 route-map EBGP-in permit 5 route-map EBGP-in permit 5
  description Do not propagate default route  description Do not propagate default route
- match ip address prefix-list default+ match ip address prefix-list DEFAULT
  set community no-advertise  set community no-advertise
 ! !
Line 88: Line 88:
  address-family ipv4  address-family ipv4
   neighbor 10.10.10.1 route-map EBGP-in in   neighbor 10.10.10.1 route-map EBGP-in in
 +  distance bgp 20 200 200
 ! !
 </code> </code>
Line 99: Line 100:
 ==== Complete Configuration ==== ==== Complete Configuration ====
  
-For BR1:+For BR1 (making BR1 the //main// default gateway): 
 <code> <code>
 +router isis ISP
 + ...
 + default-information originate route-map DEFAULT-ORIG
 +!
 +router bgp 64512
 + address-family ipv4
 +  neighbor 10.10.10.1 route-map EBGP-in in
 +  distance bgp 20 200 200
 +!
 +ip access-list standard BGP-NH
 + remark External BGP speaker
 + permit 10.10.10.1
 +!
 +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
 +!
 +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>
  
  
 [[start| Back to Home page]] [[start| Back to Home page]]
  
hints/routing.txt · Last modified: 2020/09/22 21:12 by philip