Guest User!

You are not Sophos Staff.

This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

XG135 (SFOS 16.01.2) is blocking unknown protocol traffic by default

Hi,

Currently my device XG-135 is running on V16.01.2, and it is weird to see that it is blocking unknown protocol traffic. Although "Block unrecognized SSL protocol " option is disabled under Web--> Protection. Below screenshots for reference.

 

Please suggest how to resolve this issue. There was no such issue until V15 & V16, all began after 16.01.2 . 



This thread was automatically locked due to age.
Parents Reply
  • Hi Sachin,

    Yes it is a particular website i.e. of our organization with Server IP - 220.227.24.121. It is being blocked, although all the site URLs pertaining to our organization is added under exception, but don't know why there is such issue.

    Please suggest.

     

    Thanks,

    Kumar 

Children
  • Hi Kumar,

    DM me the URL and a screenshot of the block or error page that you receive. Show me a picture of HTTPS exception policy and the configured URL(s).

    Thanks

  • Hi Kumar,

    Thanks for all the information you DM'ed me. I see in the packet inspector tool that the website is hosted on a particular IP address;which is not "220.227.24.121". Next in the web filter category here, add basic domains like lntecc.com instead of www.lntecc.com, alongside in the keyword section add few keywords in a manner below:

    lntecc, ltindia, larsentoubro, ecampus, etc.

    I see from the packet inspector that the request on www.lntecc.com is communicated on port 80 but, the request for www.lntecc.com/eiplogin.aspx is then generated on port 443. This shouldn't be an issue if all the service ports are allowed through the firewall rule.

    I would recommend you to configure a FW-rule on the TOP, where the destination network should be the IP address I will DM you.

    Next, keep the web filter and application filter defined "None" and the primary gateway set to a specific ISP not Load Balanced.

    Hope that helps.