ISP Redundancy (two links) and a new one independent

[Paulo_Aun]

Hello

I have two internet links configured on my firewall with ISP Redundancy (load sharing). Traffic is balanced between these two links, and the routing table only has one default route configured, which is a fundamental condition for ISP Redundancy to function.

Now I've received a new request to implement a third internet link on a new firewall port that will not participate in ISP Redundancy; it will be completely independent and will serve specific users.

Is it possible to implement a third link on the firewall without it participating in ISP Redundancy? To implement a third internet link, I see that I would have to create another default route on the firewall, and this would impact the functioning of the already configured ISP Redundancy.

My current configuration is:
eth1 - ISP1 (internet)
eth2 - ISP2 (internet)

Future configuration:
eth1 - ISP1 (internet)
eth2 - ISP2 (internet)

eth3 - ISP3 ((internet idenpendent)

Additional information:

1. My firewalls are version R81.20
2. My firewalls are on take 118
3. The manager is also on the same version and take 118

[PhoneBoy · Accepted solution]

How are you determining what users use this third link?
This would likely require Policy-Based Routing, which is not compatible with the ISP Redundancy feature.