SSL_VPN vlan interface on wan1

Hello,

I am trying to configure SSL_Portal on dedicated public IP address. Currently wan1 IP is 91.x.x.30/32 and I added vlan interface (vlan id 1) to wan1 physical interface and I configured IP: 91.x.x.25/32. When I change interface in SSL_Portal to 91.x.x.x.25 I can reach vpn web portal from LAN network, but not from public network (internet). Also I added firewall rule in Local-In policy (allow from all source to 91.x.x.x.25) but it does not work. Should I do something else or it is better option to achive this in other way (ssl_vpn on dedicated virtual interface and public IP address)

Best Regards, Mark