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L1 Bithead

Hello everyone,


I want to make redundancy ssl vpn for two ISP.I have two ISP.I will use DNS failover.And write nat rule for two publıc to loopback interface.(I use loopback interface for globalprotect).I write symmetric return for two external interface to loopback interface.But doesn't work.After that ı try with vlan interface but nothing change.So any body do that with another config? 


Thanks for helps.



Community Team Member

HI @seckineverr 


There are several duak ISP, VPN failover articles out there.


The following articles might help:

Dual ISP VPN site to site Tunnel Failover with Static Route Path-Monitoring 

How to Configure a Palo Alto Networks Firewall with Dual ISPs and Automatic VPN Failover 

How to Configure Dual VPNs with Dual ISPs from a Single Firewall to a Remote Site 




LIVEcommunity team member, CISSP
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Cyber Elite
Cyber Elite

@seckineverr you should opt to set your secondary IP (isp2) as a second gateway with a lower priority

relying on DNS could cause interesting problems if the client doesn't update or you are unable to update the dns for some reason

Tom Piens
PANgurus - SASE and Strata specialist; (co)managed services, VAR and consultancy
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