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New Contributor II

Port Security For device plugged into phone

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Hello,

I am trying to enable basic port security that permits a phone but denies anything else either plugged into the passthrough on the phone or direct to the wall.  The configuration below successfully blocks a device plugged directly into the wall jack in place of the phone, however, if I plug a device into the passthrough on the phone, it is allowed on.  Our phones first boot off of VLAN1, then switch to VLAN 30.  What did I miss?

interface switchport 0/21

  spanning-tree edgeport

  no shutdown

  switchport mode trunk

  switchport voice vlan 30

  qos trust cos

  switchport port-security

  switchport port-security maximum 2

  switchport port-security mac-address 00:10:49:0e:4c:c5 vlan 1

  switchport port-security mac-address 00:10:49:0e:4c:c5 vlan 30

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Anonymous
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Re: Port Security For device plugged into phone

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:

Thank you for asking this question in the support community.  If the PC is restricted access when plugged directly into the wall/switch, then the switch is configured properly.  It is possible that the phone could be manipulating the traffic from the PC, such as assigning it a VLAN. 

Will you reply and attach the current configuration (make sure to remove any sensitive information to the organization)?  What firmware version is on the switch?  Is VLAN 1 the native/untagged VLAN on both the switch and phone?

For additional reference, here is our Configuring Port Access Control in AOS document (there is an example of your application).


Levi

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Anonymous
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Re: Port Security For device plugged into phone

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:

Thank you for asking this question in the support community.  If the PC is restricted access when plugged directly into the wall/switch, then the switch is configured properly.  It is possible that the phone could be manipulating the traffic from the PC, such as assigning it a VLAN. 

Will you reply and attach the current configuration (make sure to remove any sensitive information to the organization)?  What firmware version is on the switch?  Is VLAN 1 the native/untagged VLAN on both the switch and phone?

For additional reference, here is our Configuring Port Access Control in AOS document (there is an example of your application).


Levi

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New Contributor II

Re: Port Security For device plugged into phone

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Here is the config.  Let me know what I missed.

Thanks!

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Anonymous
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Re: Port Security For device plugged into phone

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z:

Unfortunately, I don't think the configuration you attached is current, as it does not have the port security configuration.  Also, if the unit is on the firmware version 17.06.01.00.E (as indicated in the configuration you attached) then I would recommend upgrading to the current version (R10.3.0.E) before you re-send the current configuration.

Here is how to upgrade firmware in AOS.

Levi

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New Contributor II

Re: Port Security For device plugged into phone

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Sorry, here is the correct file

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Anonymous
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Re: Port Security For device plugged into phone

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:

Thank you for replying with the configuration.  I do not see anything missing in the configuration.  I used this configuration on the current version of firmware (AOS R10.3.0) with an ADTRAN IP phone and it blocked the PC when it was plugged in directly, as well as through the IP phone.

Is it possible to try this again on current firmware or with a different phone?

Levi

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Anonymous
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Re: Port Security For device plugged into phone

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:

I went ahead and flagged this post as “Assumed Answered.”  If any of the responses on this thread assisted you, please mark them as either Correct or Helpful answers with the applicable buttons.  This will make them visible and help other members of the community find solutions more easily.  If you still need assistance, I would be more than happy to continue working with you on this - just let me know in a reply.

Levi

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New Contributor II

Re: Port Security For device plugged into phone

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I tested the configuration just today on the newest firmware and it is functioning correctly.  thank you

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