How to restrict access from WAN to Zywall?

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safe_net
safe_net Posts: 4 image  Freshman Member
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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.

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

    Charlie

  • zyman2008
    zyman2008 Posts: 246 image  Master Member
    50 Answers First Comment Friend Collector Eighth Anniversary
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    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.

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