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Kudos0

Norton Core Outbound Ports Used

Setting up the Norton Core behind by ISP gateway (the latter was not setup in bridge mode, but port 80 and 443 are allowed), I found the mobile app stating that it can't connect to the cloud. Upon allowing all outbound connections on the gateway, I was able to complete setup.

Upon loss of http/https communication (i.e. gateway down), the app states that network status is offline. Upon restoration, the app still says network status offline. Upon allowing outbound connections, the network status changes to online.

Not sure if the above events are all related somehow, but this is the basis for my suspecting that certain ports are required to use the Core. I am unable to find any documentation regarding what ports are required for the Core to communicate with Norton servers. Since the Core does not block outbound connections by port (which is something that improves security by blocking all ports and only allowing traffic through approved ones), I need another firewall to do that. To be clear, this is all about outbound connections, not inbound connections, However, I want to allow ports that are required by the Core. This should not be a secret, as security though obscurity is considered a bad idea. Not sure if its just one port, or a random port selected within a certain range. What are those ports? Thanks!

Replies

Kudos0

Re: Norton Core Outbound Ports Used

Hello and welcome to the forums. Core ports are stealthed ports and not visible for the larger security of the device therefore there isn't any documentation for that. Since Core depends on your ISP signal your ISP device firewall is the issue not Core. Having to allow outbound connections on your ISP device was/is the issue. Core will detect what it needs on its own.

 Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

Thanks for your thoughts! I am not sure whether issue is Core or ISP device, but even when mobile app states "network status offline", I can still access internet on devices connected to the Core, just unable to manage the Core via this app. It appears that allowing other outbound connections for a few minutes causes the app to state "network status online". Not sure if that is related to ports other than http/https ports used by Core to communicate with Norton servers and report to the mobile app that management of the Core can now continue.  Again, certainly was essential on initial setup that outbound connections other than http/https are allowed, since once I did that, then I was able to complete setup, otherwise kept getting an error about not being able to connect to the cloud. No power-cycling of ISP device required. Nevertheless, what are the requirements for the app to state "network status online" and allow management of the Core? Thanks!

Kudos0

Re: Norton Core Outbound Ports Used

You can use your data plan to connect with the app as well as Bluetooth. Give those a closer look. When you say: "It appears that allowing other outbound connections for a few minutes causes the app to state "network status online". Since you are using your ISP router firewall and are blocking traffic with traffic rules on your ISP device the issue is not Core. You can ONLY pause internet on Core using the app and cannot disable specific ports nor set traffic rules on it as well. Lower your security level on your ISP device and reboot BOTH the router and core at the same time. These are my settings using FIOS in a NAT-NAT configuration as you have.

Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

Hey, thanks for getting back with me! I have FIOS as well! The security level is set to maximum, which blocks outbound connections, except for any specific ones via rules. Lowering the security level to just inbound blocking, does appear to resolve the issue with both initial setup and continued management of the Core via the mobile app. Hence, it would seem that specific outbound ports besides http and https are used by the Core. I am interested in keeping the security level to maximum and allowing just the specific ports that Core requires. 

Kudos0

Re: Norton Core Outbound Ports Used

Good luck, let us know how your end results are. Have a great weekend.

Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

There is a free suite from Microsoft which I use on my network that may help you capture some of the information you need. Get it here.

Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

Hello

The Core opens up the ports as they are needed since the ports are stealth. Are you using the complimentary security program that came with the Core? The security of the Core is handled by the encryption level that is required.

Have a Good Night and

Thanks.

Success always occurs in private and failure in full view. Windows 7 Pro 64 bit NSBU 22.17.0.183 Core Firmware 270 I E 11 Chrome latest one
Kudos0

Re: Norton Core Outbound Ports Used

Having found some ports, it would seem upon further thought, that unless these are documented in some Norton doc or mentioned by Symantec personnel in some forum thread I missed, I cannot quite rely upon the port number, since a firmware update can change it. It will be just unfortunate to have to figure it out again if that were to occur. Since the conditions for the mobile app to state "network status offline" should not occur much, then it will only be rare that I lose management ability of the Core, until any such ports are opened as needed in current or future firmware. 

I am using the complimentary security program. 

I will continue to monitor this thread and see if someone posts something that references anything definite from Symantec that I was unable to find elsewhere.  

Accepted Solution
Kudos0

Re: Norton Core Outbound Ports Used

Hello again symantecnortonuser I have contacted Core support regarding your desire for Core outbound ports listings. There are NO documented articles with that information due to device security. I have provided an excerpt from the chat session for you here:

 System:   Your reference number for this chat session is xxxxxxx
 Terry Phillips:   Initial Question/Comment: Is there an article available listing inbound/outbound ports on Core? I'm a support Guru on the US forums and have a customer needing a yes or no as to whether this information is available to the public.
 System:   Welcome to Norton Support! A Norton Representative will be with you shortly.
 System:   Your Case number is xxxxxxx
 System:   Kavitha has joined this session!
 System:   Welcome to Norton Support, my name is Kavitha. Please give me a minute to go through the information you have provided.
 Kavitha:   Thank you for contacting Norton chat support for Norton Core, our High-performance WiFi router that protects all your connected devices. My name is Kavitha.
 Kavitha:   We've not mentioned the inbound/outbound ports on Core to the public due to security reasons.
 Terry Phillips:   As I have told the customer as well. They believe an admin will offer that info and won't close the thread. I will offer them this convo as closure. Thanks
.

So here is the definitive answer. Norton employees nor an admin will offer that info if requested and for the reason stated in the conversation with support.

Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

symantecnortonuser:

I am interested in keeping the security level to maximum and allowing just the specific ports that Core requires. 

The usual default on ISP-supplied routers is the low firewall setting.  I have yet to configure one of these firewalls to a higher setting without encountering issues.  You already should have the Norton Security Firewall monitoring and controlling outbound traffic from your PC, so I would recommend forgoing the redundant use of the router firewall.  Frankly, with it set to maximum, I am surprised that you have not had more connectivity problems.

Kudos0

Re: Norton Core Outbound Ports Used

SOJ, I AGREE indeed. My point to the OP is that because the ISP device has its firewall at maximum IS the issue. As you tried to convey, its not needed. All the protection is there since he cannot upgrade the firmware to the ISP device with other than what they allow. And Core will protect the rest of the network. His connectivity issues lie with the ISP device.

Cheers

Retired military (Navy 1980-2002) AO1 (AW) Aviation Warfare Specialist "From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Professional x 64 version 1809 / build 17763.379 / NCSP 22.17.0.183 / Norton Core v.278 on Android 1.93
Kudos0

Re: Norton Core Outbound Ports Used

SoulAsylum, thanks for reaching out to Norton Support, and obtaining confirmation that Norton has not made available the information I am looking for.

I appreciate the ideas and assistance from everyone in this thread. Thanks!

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