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DHCP Option 43 - Mitel Phone System

Has anyone been able to get this to work with a Mitel Phone system? It requires One Bye Data type and I am struggling to get the data converted to that. Just was wondering if I am alone on this!

Category: Mid Range Firewalls


  • BWCBWC Cybersecurity Overlord ✭✭✭

    Hi @CBack85 what do you need to send via DHCP Option 43? I did this a few times for different devices and it worked fine.

    This is how I did it for elmeg as example. IIRC I created it as HEX and it got converted to DEC on the way, there was something weird going on.


  • CBack85CBack85 Newbie ✭

    Hi @BWC I need to get these options to the Mitel phones but I am not smart enough to get this converted to the One Bye Data the SonicWall requires. Any help you could provide would be greatly appreciated.;sw_tftp=;call_srv=;vlan=10;l2p=6;dscp=56;

  • CBack85CBack85 Newbie ✭

    So I got in Hex but no idea how to convert this.....


  • BWCBWC Cybersecurity Overlord ✭✭✭

    @CBack85 I don't know the format the Mitel Phone expecting via DHCP Option 43, but the string you mentioned (id:ipphone....) would be



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