Forum Discussion

Albert_Coll's avatar
Albert_Coll
Icon for Cirrus rankCirrus
Apr 08, 2021

Problem when attempting to route between two route domains.

Hello,

 

I have this scenario

  • A front-end vlan (vlan_one), belonging to Route Domain #1
  • A back-end vlan (vlan_two), belonging to Route Domain #2
  • Some virtual servers in between, to balance traffic from the front-end users to the back-end servers.

 

Now, some administrators behind a firewall connected to the front-end (vlan_one) need to reach the back-end servers directly. So that routing between Routing Domains #1 & #2 should be enabled.

 

How can I perform the routing between both Route Domains?

I disabled the "strict isolation" on both Route Domains, plus within the Route Domain #1 (Front-End) I set the Route Domain #2 (Back-End) as his parent Domain.

But the routing does not seems to work.

Do you think this is the right way to do that? Or did I left something?

 

Regards in advance.

 

application delivery
BIG-IP
LTM
route domains
routing
  • Nikoolayy1's avatar
    Nikoolayy1
    Icon for MVP rankMVP
    Apr 08, 2021

    Check this:

     

     

    https://support.f5.com/csp/article/K84417414

     

     

    Have you created the correct static route in the two route domains and also better enable strick isolation as the parent child relationship will still work and this way the traffic will not go to a wrong domain.

     

     

     

    Check with the tcpdump if the request are exiting in the correct route domain and if you see the return traffic. Maybe it will be needed to create a static path also for the return traffic?

     

     

    https://support.f5.com/csp/article/K6546