ISA with Mikrotik

Hi all,

I have ISA server2006,I need to add ISA proxy for my clients.All requests that came to router, redirects to ISA.
Please, I need help on doing that on Mikrotik
knowing i have 4 accounts 1MB/128 up
ip address 1: 192.168.25.50/24
ip address 2: 192.168.26.50/24
ip address 3: 192.168.27.50/24
ip address 4: 192.168.28.50/24

No internet at ISA only the ip go to mikrotik

Best Regards,

try

/ip firewall filter add action=accept chain=forward src-address=192.168.25.50 dst-address=IPOfISASERVER

this will forward all your traffic to IPOfISASERVER originating form 192.168.25.50