NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
CAX80 Port forwarding broke
Recently I discovered that I cannot setup any port forwarding on my CAX80. When I try, I get this error message; The specified port(s) are being used by other configurations. Please check your ...
UPDATE: I solved the issue
When I initially configured the CAX80 I enabled the use of the built-in DHCP server to provide IP addresses beginning at 10.0.0.2 through 10.0.0.254. During this time of its use, I enabled the Port Forwarding option to a system with IP address 10.0.0.123 to test incoming conenctivity to a webserver I was hosting. After I confirmed it worked, I removed the port forwarding because I was not happy about the inability to restrict incoming IP addresses.As I proceeded to statically set IP addresses to a majority of systems in my home network, I subsequently modifed the range of IP addresses the DHCP server would assign to begin with .200 (through .254). Later, I decided to disable the use of the DHCP server entirely. However despite the option being greyed out indicating it was not being used, the reference to the beginning IP address 10.0.0.200 remained visible, though it too was greyed out.
Curious, I enabled the DHCP server, modified the beginning IP address to 10.0.0.2, saved the change, then disabled the use of the DHCP server. Once this was done, I was able to add the port forwarding rule.
To the OP, go take a look at the settings of the DHCP server. I suspect you might have been bit like I was.
Thanks for the reply,
When I try to create a configuration to forward a port, any port.
Yes, I tried about 100 ports, it does not matter which one you try, even the basic ones that should be working. Pick a port any port, it does not matter, the function of port forwarding it broke in this model; the CAX80. If you do not have one on hand, you won't be able to help. I am asking for someone that has one to check and see if they can forward a port, ANY port.
btw, DMZ does not work either, it gives the error message; IP address is not on the LAN. And it very well is, no matter which IP address I use, one obtained through DHCP by the CAX80 or a static one that I set myself, in or outside of the DHCP range.
Yes, there is no actual conflict, it does not even try to set the port forward configuation, I just get that message that there is a conflict, I believe it is a generic message too, the real problem is that I cannot even set a port, not even with the pre-set ones that are there already.
> [...] If you do not have one on hand, you won't be able to help. [...]
What's crippling me is your unwillingness/inability to describe
precisely what you did. I could have fifty CAX80 units in hand, and
still not be able to test what you did, because, with my weak psychic
powers, I can't see what you did.
> btw, DMZ does not work either, it gives the error message; IP address
> is not on the LAN. [...]
And, again, I can't see the IP address which you are specifying. Or
the IP address of any interface on any device which you have.
The fact that you seem to get an error message every time you specify
an IP address, for any reason, suggests to me that what you're
specifying is defective in some way. But, again, with no useful
information, I'm helpless to do more than guess.
For all I know, you have some other router connected to the CAX80,
and you're specifying IP addresses from some other LAN segment/subnet.
How could I determine that from your non-descriptions?
> [...] no matter which IP address I use [...]
Which part of "precisely" do you find so confusing?
Of course, it's also possible that the CAX80 firmware (whichever
version you have) is hopelessly broken. Which might explain the flood
of similar complaints from angry hordes of CAX80 users. If there were
one. I haven't noticed one yet, but I haven't searched hard.
Thanks for the reply,
I cannot force you to understand a precise answer....
The issue is to use the feature of the device that is called PORT FORWARDING or DMZ.
You can choose any local IP address or PORT value that you want to use.... IT DOES NOT MATTER, the feature does not accept any values that you enter. You are trying to troubleshoot this from a perspective that it is the values being entered that are culprit to the issue. This is not the issue nor the complaint, I am simply asking if that feature is broken on one else that has a CAX80 unit. If you do not have that unit, you cannot test or reply to my query.
I have downloaded and read the manal for this unit and nothing different than what I have done, its all outlined on page 116 step by step, and you cannot follow those steps because the feature does not work, it will give that already stated error message each and every time, no matter what numbers you enter.
I do not know how to make it any more precise for you to understand?
Thank you again for your interest.
> I cannot force you to understand a precise answer....
You'd need to provide one, first.
You might, for example, have revealed some actual port numbers and IP
addresses, as requested. Repeatedly.> [...] You are trying to troubleshoot this from a perspective that it
> is the values being entered that are culprit to the issue. [...]I am until I see them.
> [...] I am simply asking if that feature is broken on one else that
> has a CAX80 unit. [...]As I said, I can't test that, but I'm also doubtful that such a gross
defect in that firmware version would have gone unnoticed, if it
existed.> I do not know how to make it any more precise for you to understand?
Apparently. And I'm tired of trying to extract any useful
information from you. Best wishes on your inquiry.