Policy Routing SSL VPN

Only create a policy to allow traffic from the SSL.root (SSL VPN interface) to wan2 (ISP2)

Check if this already solves your request

If this doesn't work you may need a policy route

Go to System > Features and Enable Advanced Routing, click apply

Go to Router > Static > Policy Routes and click Create new

Select Any for the protocol, ssl.root for incoming interface, your SSL VPN ip range as source and 0.0.0.0/0 as destination

Select Forward traffic, your wan2 (ISP2) interface as outgoing interface and enter the ISP2's gateway

Please tell me if this worked for you

Just want to point out on the firewall policy you need to SNAT SSLVPN Pool address behind the egress interface address. And you need to ensure split-tunneling is not engaged. I call this type of sslvpn access a hairpin turn.

I haven't tested yet the vpn client.

But this configuration doesn't redirect the VPN Web Portal used by users to download the vpn client through ISP2 It goes through default gateway (ISP1). Is there any way to redirect the web vpn portal through isp2 too?

If not, I will need a dns domain name for web portal and a dns domain name for vpn ssl

Thanks