How to restrict access from WAN to Zywall?

safe_net Posts: 4
First Comment Third Anniversary
edited April 2021 in Security
How can I restrict the access from WAN to my Zywall USG20? I want only be able to have access from the internal network to the Zywall, but not from outside.

All Replies

  • Zyxel_Charlie
    Zyxel_Charlie Posts: 1,034
    50 Answers 500 Comments Friend Collector Fourth Anniversary
     Zyxel Employee
    Go to Configuration>System>WWW> Create the rule Wan(all address deny)
    Therefore, the Wan client cannot access to GUI via Wan IP.


  • zyman2008
    zyman2008 Posts: 184
    25 Answers First Comment Friend Collector Sixth Anniversary
     Master Member
    safe_net & @Zyxel_Charlie ,
    If you won't provide SSL VPN to Internet.
    Then I'd prefer to add one firewall rule to block all HTTP(TCP 80)/HTTPs(TCP 443)service from WAN to ZyWALL.
    So that can avoid any port scan tools to detect the ports.

Security Highlight