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Re: R7000 tcp /udp port management

Whitehat76
Aspirant

R7000 tcp /udp port management

Hi, How I can make sure a specific port (udp or tcp) is not blocked by the firewall component, without using Portwarding or Port Triggering ?

 

Thank you

 

Nighthawk R7000

Firmware Version
V1.0.9.32_10.2.34 

Model: R7500|Nighthawk X4 AC2350 Smart WiFi Router
Message 1 of 6
antinode
Guru

Re: R7000 tcp /udp port management

> [...] How I can make sure a specific port (udp or tcp) is not blocked
> by the firewall component, without using Portwarding or Port Triggering
> ?

   It might help if you explained the actual problem which you trying to
solve.  In general, without using port forwarding/triggering (or UPnP),
_every_ port would be blocked.  That is, incoming connection attempts
will fail.  As usual, there are complications -- Enabling Remote
Management or some other remote-access features can allow some kinds of
incoming connections.

Message 2 of 6
n-6ac
Aspirant

Re: R7000 tcp /udp port management

> [...] How I can make sure a specific port (udp or tcp) is not blocked
> by the firewall component, without using Portwarding or Port Triggering
> ?

 

Have you looked at one of these sites, which can tell you what ports are open to the outside world –

http://www.portchecktool.com/

http://canyouseeme.org/

 

Model: R7000|Nighthawk AC1900 Dual Band WiFi Router
Message 3 of 6
Whitehat76
Aspirant

Re: R7000 tcp /udp port management

I Need to do vpn tests between my home network and my company cisco router, to be sure that L2TP communication works between the 2 routers. I just want my R7000 to not block UDP 1701 for example (or 1723 for PPTP, or whaterver other ports for vpns). Just for the time i'M testing. Also theses ports are UDP and sites like portchecktools etc.. seems to only test TCP ports.  I don't want to forward the port on a specific machine on my home network for the tests. I juste want that it can allow the traffic towards any machine on my home network  I may have to test with.

 

For example, On a Small Business class cisco router with WebGui, you can use Access rules to make sure specifics ports are not blocked... there must be some way to do the same with the R7000.

Message 4 of 6
antinode
Guru

Re: R7000 tcp /udp port management

> [...] I just want my R7000 to not block UDP 1701 for example (or 1723
> for PPTP, or whaterver other ports for vpns). [...]

   It shouldn't "block" any of those ports.  It also may be unable to
deliver incoming messages to them unless you tell it what to do with
such messages.

> [...] I don't want to forward the port on a specific machine on my
> home network for the tests. [...]

   Ok.  Then what, exactly, do you expect the R7000 to do with a message
which is addressed to one of those ports?

> [...] I juste want that it can allow the traffic towards any machine
> on my home network  I may have to test with.

   And how should the R7000 decide to which "any machine on my home
network" it should forward such traffic?

> [...] there must be some way to do the same with the R7000.

   If you say so, but I don't think that you're making sense.

Message 5 of 6
jg121234
Tutor

R7000 tcp /udp port management

@Whitehat76 wrote:

  I don't want to forward the port on a specific machine on my home network for the tests. I juste want that it can allow the traffic towards any machine on my home network  I may have to test with.

 

You need to forward the traffic to a specific machine.  What else would the router do with the data being sent to that port?  It is a router, it routes data from one machine to another.  You can't have it set up to send the traffic to all machines in your home network, that would be a mess, like some sort of strange multicast communicaitons.

Message 6 of 6
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