firewall rule to block WAN access

I have 5 IP’s that I want only to allow LAN access to and blocking all WAN access. I am not a networking guy so please be gentle and help a guy out if you could.

Jason

wrong forum - should be posted to Beginner’s Basics =)

you may simply add firewall blocking rule:

/ip firewall filter add chain=forward src-address=192.168.0.1-192.168.0.5 action=reject disabled=no place-before 0

thanks!

you are welcome =)