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fortigate_champ84
fortigate_champ84
New Member
October 17, 2023
Question

Fortigate DHCP Failover

  • October 17, 2023
  • 2 replies
  • 2235 views

We have two firewalls connected to x2 different ISPs. We are looking for DHCP to be configured on both however really interested to know how DHCP failover would work .e.g if Firewall 1 WAN connection is down only then clients should be able to get a DHCP lease from Firewall 2.

 

Please can someone suggest. 

 

 

2 replies

srajeswaran
Staff
srajeswaran
Staff
October 17, 2023

Can you share some more details on the connectivity/design.

 

Are these 2 firewalls in cluster (FGCP/FGSP)?
The DHCP clients are connected to same LAN?

How are the clients connected to these 2 fortigates?

 

 

fortigate_champ84
fortigate_champ84Author
New Member
October 17, 2023

@srajeswaran these two firewalls are not in HA cluster and working independtly at the moment. However I am looking for some suggestions as whether to setup HA active-passive and failover this way.

 

Solution looks like

 

ISP1 -> WAN1 - Fortigate1- Switch A-- Switch B -- Switch C-- clients connect via wired and APs

ISP1 -> WAN2 - Fortigate2- Switch A --Switch B -- Switch C-- clients connect via wired and APs

hbac
Staff
hbac
Staff
October 17, 2023

Hi @fortigate_champ84,

 

If both firewalls are not in HA cluster, I don't think failover's gonna work. I would suggest configuring them as an HA cluster. 

 

Regards, 

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