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Forum Discussion

Shripaty's avatar
Shripaty
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Jun 23, 2020

Vlan Addition for virtual subnets

Hi,   I am trying to configure multiple vlans for virtual having their gateway for vlans hosted on switch virtual interface. I wanted to route the traffic from each virtual vlan to the backend me...
application delivery
BIG-IP
LTM
Shripaty's avatar
Shripaty
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Jun 24, 2020

So , it means we cannot have multiple default gateway for f5 which can be used specifically for the vlan configured on for virtuals -listeners and then the self ip of each vlan tries to communicate to the backend pool members via the default gateway configured specifically for that vlan on the next hop of switch virtual interface.

 

I was trying to configure separate routes for each of the vlan but then it gives me a message of Implied Route is already present for that vlan . So I am wondering the backend traffic will still be monitored from only one vlan rather than each vlan specifically. Also , one more suggetion , if I create multiple vlans for virtual but the backend traffic passes through only one vlan default route will that create an asymetric routing , actually i am messed up with this architecture

  • PeteWhite's avatar
    PeteWhite
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    Jun 24, 2020
    Hi Shripaty, Yes, you can have multiple default gateways - with multiple route domains. If you don’t want to do that then the rules of IP are that a default route is a default and will be used in the absence of other routes, but you can add static routes as well. To be honest, if you are struggling with the IP side of this then you may want to engage Professional Services as it could be easy to get this part wrong.