Jethrocreek
Level 1 (0 points)

Q: Opening ports on AE

I have a network issue on a clients system.

He has a Canon MF4770n that is possibly being blocked on the network.

Canon network tech was unable to help.

The system is as follows:

1 AE using DHCP/NAT

2 AE's in bridge mode

 

1 Macbook Pro

1 Canon mf4770n

 

The canon will not talk to any other devices on the network at all.

It does respond to port scans

There is a list of 6 different ports that need to be opened.

I have used DHCP to assign adddress to the canon with the canon receiving a working IP 50% of the time

(169.152.xx.xx - 10.0.1.xx)

however have now assigned a static IP by MAC address

still not able to conect to printer on MAC or on a windows laptop I have for programming.

So my next attempt is to try to open these ports on the DHCP AE.

Airport Extreme, Other OS

Posted on May 13, 2014 3:06 PM

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Jethrocreek

Q: Opening ports on AE

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  • Helpful answers

  • by Tesserax,

    Tesserax Tesserax May 13, 2014 5:28 PM in response to Jethrocreek
    Level 9 (54,874 points)
    Wireless
    May 13, 2014 5:28 PM in response to Jethrocreek

    You would only need to open ports on the router if you were attempting to access the printer from a remote location. Within a properly configured local network all communications between the network computers and the printer would stay on the local network.

     

    Double check to be sure that the two "AE's" that are in bridge mode are actually in bridge mode. Are these base stations being used to extend the AirPort Extreme that has NAT & DHCP enabled?

  • by Jethrocreek,

    Jethrocreek Jethrocreek May 13, 2014 6:33 PM in response to Tesserax
    Level 1 (0 points)
    May 13, 2014 6:33 PM in response to Tesserax

    OK. Well. The two bridged AEs are being used as WAPs and are in bridge mode. Prior to this incident. The network has worked flawlessly more 6-8 months now. My gut is there is a firewall issue but the windows laptop has no firewall and is unable to connect.

  • by Tesserax,

    Tesserax Tesserax May 14, 2014 8:39 AM in response to Jethrocreek
    Level 9 (54,874 points)
    Wireless
    May 14, 2014 8:39 AM in response to Jethrocreek

    The two bridged AEs are being used as WAPs and are in bridge mode.

    Just to make sure I understand are both of these AirPort Extreme routers connected back to the "main" AirPort Extreme via Ethernet? ... or is there a wireless connection between them?

     

    For the printer is it connected to an AirPort Extreme by USB or by Ethernet? Also which Extreme is it connected to: the main or one of the "WAPs?"

     

    Finally, which exact model(s) are your AirPort Extreme base stations?

  • by Jethrocreek,

    Jethrocreek Jethrocreek May 14, 2014 10:42 AM in response to Tesserax
    Level 1 (0 points)
    May 14, 2014 10:42 AM in response to Tesserax

    Well. All AEs are hard wired Ethernet. Printer is hard wired Ethernet as well and is connected directly to the router not to a WAP.  As for the exact model all I can tell you is its the newest generation. The tall rectangles.

  • by Tesserax,

    Tesserax Tesserax May 14, 2014 10:53 AM in response to Jethrocreek
    Level 9 (54,874 points)
    Wireless
    May 14, 2014 10:53 AM in response to Jethrocreek

    Thank your for the clarification.

     

    What you have is the basis of a roaming network. This would allow a wireless network client to literally "roam" between routers and still be on the "same" Wi-Fi network.

     

    The keys for this type of network to be successful are the following:

     

    • The "extending" base stations must be connected back to the "main" base station by Ethernet. This you have already done.
    • Each base station MUST have a unique Base Station Name.
    • Each base station MUST broadcast a wireless network using the same Network Name (aka SSID) and use the same wireless security type (WPA or WPA2) and wireless password.
    • Each base station should have it's Radio Mode & Radio Channels set to "Automatic."

     

    Is this the case for your network? If so, then wireless clients connected to any of the base stations would still be on the same network subnet, and thus, be able to share any network resources on that same subnet ... like your printer.

  • by Jethrocreek,

    Jethrocreek Jethrocreek May 14, 2014 8:41 PM in response to Tesserax
    Level 1 (0 points)
    May 14, 2014 8:41 PM in response to Tesserax

    Yes all those settings are correct which is exactly why this is so confusing. It should work with no problems.

  • by Jethrocreek,

    Jethrocreek Jethrocreek May 14, 2014 8:45 PM in response to Jethrocreek
    Level 1 (0 points)
    May 14, 2014 8:45 PM in response to Jethrocreek

    In fact I have the printer currently at 10.0.1.200, macbook is at 10.0.1.23, win PC at 10.0.1.28 . all subnetted at 255.255.255.0 with router at 10.0.1.1. I see no reason for this printer to not communicate. I can net probe and see all devices but that is the extent of the interaction

    .

  • by Tesserax,Helpful

    Tesserax Tesserax May 15, 2014 8:36 AM in response to Jethrocreek
    Level 9 (54,874 points)
    Wireless
    May 15, 2014 8:36 AM in response to Jethrocreek

    The only thing that comes to mind is to work backwards with your network. That is, I would suggest powering down both "extending" base stations leaving just the "main" Extreme operational.

     

    In this configuration verify that both wired and wireless clients can access the printer that is connected to this base station by Ethernet. Once verified, power-up one of the extending base stations and test again. If all is working as expected add the final base station.

     

    Please post back your results.