The Water Cooler

  • 1.  dhcp on dual mode not working correctly

    Posted Jun 23, 2018 02:05 PM

    Had cisco callmanger phone system. Using Brocade ICX 7450 switch with following config

     

    vlan 10 by port
    tagged ethe 1/1/1 to 1/1/46 ethe 1/1/48 ethe 1/2/1 to 1/2/4 ethe 2/1/1 to 2/1/16 ethe 2/1/25 to 2/1/36 ethe 2/2/1 to 2/2/4
    untagged ethe 2/1/19 to 2/1/24 ethe 2/1/37 to 2/1/44
    router-interface ve 10

     

    vlan 100 by port
    tagged ethe 1/1/1 to 1/1/46 ethe 1/1/48 ethe 1/2/1 to 1/2/4 ethe 2/1/1 to 2/1/16 ethe 2/2/1 to 2/2/4
    router-interface ve 100

     

     

    interface ethernet 1/1/29
    port-name DESKTOP-PHONE
    dual-mode 10
    inline power power-limit 15400
    voice-vlan 100

     

    This worked fine. Phone got correct IP address in vlan 100, PC got correct IP address in vlan 10

     

    Switching to Mitel phone system this weekend. Created Vlan 90 for the Mitel phones with an address range of 10.8.90.x /24

    Still using Vlan 10 (as above) for desktops

     

    Removed Tagged ports from vlan100. This removed the voice-vlan from each port

     

    Added tagged ports to vlan 90 

    vlan 90 name MID-Mitel_Phones by port
    tagged ethe 1/1/1 to 1/1/46 ethe 1/1/48 ethe 1/2/1 to 1/2/4 ethe 2/1/1 to 2/1/16 ethe 2/1/25 to 2/1/36 ethe 2/2/1 to 2/2/4
    untagged ethe 1/1/47
    router-interface ve 90

     

    New config on port looks like this

    interface ethernet 1/1/29
    port-name DESKTOP-PHONE
    dual-mode 10
    inline power power-limit 15400
    voice-vlan 90

     

    When we plug Mitel phones in they get an address in vlan 10 instead of vlan 90

    If we plug cisco phone back in, it gets address in vlan 90 like it is supposed to. 

     

    What am I missing

     

     


    #TheWaterCooler


  • 2.  Re: dhcp on dual mode not working correctly