Unable to reach this page

Nicola_Santalucia
Nicola_Santalucia Posts: 14  Freshman Member
10 Comments Second Anniversary
in Security

My firewall USG Flex 100 blocking a specific web page: https://admin.aruba.it/ with the message: "Unable to reach this page" I entered the 'IP of the site in the reputation filter > Allow list page but it doesn't work...Any advice? Thanks

Best Answers

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector
    edited September 2023 Answer ✓

    Hi @Nicola_Santalucia

    Regarding our remote session, while attempting to access https://pti.regione.sicilia.it/ we observed that only a TCP SYN packet was sent to the website server. However, the website server did not respond with any TCP SYN-ACK to the PC. Therefore, please bypass the USG Flex 100 and connect directly to the ISP router to see if you can access those websites or not. Thank you.

    wireshark.png


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  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector
    edited September 2023 Answer ✓

    Hi @Nicola_Santalucia

    Per our discussion on the private message. It seems the root cause is related to the website blocking your public IP. Thanks.


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  • Nicola_Santalucia
    Nicola_Santalucia Posts: 14  Freshman Member
    10 Comments Second Anniversary
    Answer ✓

    Yes i confirm

All Replies

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector

    Hi @Nicola_Santalucia

    Whenever you cannot access https://admin.aruba.it/ , what kind of blocked log can be observed on Monitor > Log > View Log? Thanks.


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  • Nicola_Santalucia
    Nicola_Santalucia Posts: 14  Freshman Member
    10 Comments Second Anniversary

    Hi, thank you for your response. I don't have anything in the Logs about Aruba.

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector

    Hi @Nicola_Santalucia

    Could you provide a remote Web-GUI link to us for further checking? We will send a private message to you later. Thanks.


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    Don't miss this great chance to upgrade your Nebula org. for free! https://bit.ly/4g2pS9L

  • Nicola_Santalucia
    Nicola_Santalucia Posts: 14  Freshman Member
    10 Comments Second Anniversary

    Hi, unfortunately being a corporate device I cannot allow you access...I have to ask for permission. I am only the sysadmin

  • Nicola_Santalucia
    Nicola_Santalucia Posts: 14  Freshman Member
    10 Comments Second Anniversary

    Help.. I discovered that it also happens with the site https://pti.regione.sicilia.it/ Can anyone help me?

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector

    Hi @Nicola_Santalucia

    We can schedule a time to address this issue with you. Please check your private messages. Thank you.


    Untitled Image

    Don't miss this great chance to upgrade your Nebula org. for free! https://bit.ly/4g2pS9L

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector
    edited September 2023 Answer ✓

    Hi @Nicola_Santalucia

    Regarding our remote session, while attempting to access https://pti.regione.sicilia.it/ we observed that only a TCP SYN packet was sent to the website server. However, the website server did not respond with any TCP SYN-ACK to the PC. Therefore, please bypass the USG Flex 100 and connect directly to the ISP router to see if you can access those websites or not. Thank you.

    wireshark.png


    Untitled Image

    Don't miss this great chance to upgrade your Nebula org. for free! https://bit.ly/4g2pS9L

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,169  Zyxel Employee
    Third Anniversary 100 Answers 500 Comments Friend Collector
    edited September 2023 Answer ✓

    Hi @Nicola_Santalucia

    Per our discussion on the private message. It seems the root cause is related to the website blocking your public IP. Thanks.


    Untitled Image

    Don't miss this great chance to upgrade your Nebula org. for free! https://bit.ly/4g2pS9L

  • Nicola_Santalucia
    Nicola_Santalucia Posts: 14  Freshman Member
    10 Comments Second Anniversary
    Answer ✓

    Yes i confirm

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