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Customer need to advertise one subnet from HQ AR router to connected Juniper FW, connection as below DR AR3200 >> HQ AR3200 >> Juniper FW connected with BGP

Publication Date:  2018-02-27 Views:  150 Downloads:  0
Issue Description

Customer need to advertise one subnet from HQ AR router to connected Juniper FW, connection as below 


Subnet need to be advertised 10.41.70.0 0.0.0.255 , which is orginated from DR AR3200 on the right side


DR AR3200 >> HQ AR3200 >> Juniper FW connected with BGP 


Solution

After check the ospf routing table on HQ AR, we found that the route 10.41.70.0/24 is under ospf 2015 but not under ospf 2016, so when import-route ospf 2016 to bgp, this route can’t be sent to BGP routing table.


 

There is a way of solving this problem:

Import-route ospf 2015 to BGP, and add route-policy .   (example: FSE want to 10.41.70.0/24 advertise to FW)

 

The configuration is below:

#

acl number 2002

 rule permit source 10.41.70.0 0.0.0.255

#

route-policy ospftobgp-2 permit node 10

if-match acl 2002

#

Bgp 64518

ipv4-family unicast

  import-route ospf 2015 route-policy ospftobgp-2

#

 

Please check this configuration. 

END