-1

I find many type routers have their self-existent URL filter settings.

Tenda:

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Nexxt:

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So, is there a URL filter protocol in TCP/IP stack?

and if is, is there any software for controlling every type's router?

2

THis is not part of the base TCP/IP stack and this can't be configured in a router-independent way. Instead, this is a filtering proxy or application level firewall on the router and completely vendor-dependent.

(Note: https://en.wikipedia.org/wiki/TR-069 exists and might or might not have some capabilities to configure such functions, but this would be conceptually no different then e.g. Ansible for server configuration).

  • There has a question, can we develop a application level firewall on the router, then every type router can install it as application, so they can filter URLs? – aircraft Sep 11 '18 at 3:12
2

No. URL filtering happens in Layer 7 so it is completely dependent on each device's implementation.

With the vast majority of the web moving to HTTPS URL filtering becomes much more difficult and I don't expect cheap/entry level devices to be able to do it.

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