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DHCP Option (66) Not working

Hi, I'm trying to config PXE booting but DHCP Option (66) is missing when I inspect the boot sequence via TCPDump. I have had a look thru the forums but have not found a solution. Has anyone been able to get PXE boot working on a XG appliance?

UPDATE: I spoke to Sophos support and they suggest a Business Application DNAT rule to forward traffic that comes to the XG's LAN IP on port UDP 69 (TFTP) to the "TFTP Server" which did the trick!

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0 rfcat_vk over 8 years ago

You will need to search for adding dhcp option, there was a post about using cli to add options.

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0 Allan Pumphrey over 8 years ago in reply to rfcat_vk

Thanks for the prompt reply. We are using XG v16.x. We have also added the extra options via the CLI. These are shown at the bottom of the screen shot.
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0 Allan Pumphrey over 8 years ago in reply to rfcat_vk

Thanks for the prompt reply. We are using XG v16.x. We have also added the extra options via the CLI. These are shown at the bottom of the screen shot.
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0 rfcat_vk over 8 years ago in reply to Allan Pumphrey

Sorry, black on black on a small screen without glasses on.

You will need to look at the various logs or capture a packet to see if the request is being answered by the DHCP server on the XG.

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