how do I restrict all traffic

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jak67429
jak67429 Posts: 1 image  Freshman Member
edited April 2021 in Security
I want to block all traffic except from 1 external sip server.

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  • PeterUK
    PeterUK Posts: 4,422 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary
    So would this from WAN to LAN1 or LAN1 to WAN? do you only want SIP work and nothing else?

    IP and port your wanting to allow and with SIP ALG enabled?
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,436 image  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Eighth Anniversary

    Hi @jak67429  

    In default configuration, policy control rule blocked all of traffic from Internet except VPN/GRE/VRRP services.

    If you would like to allow traffic from external SIP server to Internal SIP client. You can add policy control rule for your SIP server first.

    e.g From: WAN, To: LAN1, Source: YourSIPServerIP, Destination: any, Action: Allow.


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