Windows 10: Protocol numbers? -- setting in Windows Firewall -- What are they?

Discus and support Protocol numbers? -- setting in Windows Firewall -- What are they? in AntiVirus, Firewalls and System Security to solve the problem; In Windows Firewall 'Outbound Rules', 'Thunderbird Properties', _/Protocols and Ports\_, 'Protocol type: [Custom]' & 'Protocol number: [?]': What are... Discussion in 'AntiVirus, Firewalls and System Security' started by MarkFilipak.Windows, Nov 16, 2018.

  1. MARKFILIPAK.WINDOWS
    MarkFilipak.Windows Win User

    Protocol numbers? -- setting in Windows Firewall -- What are they?


    In Windows Firewall 'Outbound Rules', 'Thunderbird Properties', _/Protocols and Ports\_, 'Protocol type: [Custom]' & 'Protocol number: [?]':


    What are the Protocol numbers for SMTP & POP? for SMTPv2? for SMTPv3? for POP3?
    (...Actually, I didn't know there was such a thing as protocol number...)

    Regarding POP, if ports are used instead of protocols -- I believe there's no way to block ports, only to enable ports -- I know that POP uses port 110. Is POP3 port 995?

    Regarding SMTP, is SSL (port 465) a protocol? Is STARTTLS (port 587) a protocol? I don't think so, but if I enable only those ports (plus ports 110 & 995), will that suffice for an email client?

    What about SMTPv2? What about SMTPv3?



    ...I searched for answers of course, but I think this 'Protocol number' thing is a Windows thing, not a real thing. Do you have a reference (or a link)?

    :)
     
    MarkFilipak.Windows, Nov 16, 2018
    #1
  2. DEUSXMACHINA
    Deusxmachina Win User

    Best free AV and firewall

    Can Windows Firewall block outgoing connections yet? If not, it's one step above useless.

    Look into Online Armor for a free firewall.
     
    Deusxmachina, Nov 16, 2018
    #2
  3. THRILL KILL
    THRiLL KiLL Win User
    windows firewall question

    yes i am sure i am having no issues with a router. this is at my work. and i only have issues with the windows 7 firewall.

    as for adding ports, i do it the same as what is listed in your picture.
     
    THRiLL KiLL, Nov 16, 2018
    #3
  4. ANNE FUJ
    Anne Fuj Win User

    Protocol numbers? -- setting in Windows Firewall -- What are they?

    Firewall

    Hello,

    It is recommended to turn on your Firewalls to prevent your computer from unauthorized access and being vulnerable. Based on your issue description, it looks like you wanted to turn off Windows Firewall. To turn off Windows Firewall, kindly follow the steps
    below:

    • On Start, scroll down to Windows System > Control Panel > System
      and Security       > Windows Firewall.
    • Select Turn Windows Firewall on or off. You might be asked for an admin password or to confirm your choice.
    • Under the appropriate network setting, select Turn on Windows Firewall.
      • Note: If your PC is connected to a network, network policy settings might prevent you from completing these steps. For more info, contact your .administrator

    Let us know if you need further assistance.
     
    Anne Fuj, Nov 16, 2018
    #4
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Protocol numbers? -- setting in Windows Firewall -- What are they?

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