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Jaap's avatar
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Jaap
answered 2020-12-31 08:29:43 +0000

This question is lacking a lot of details to give a definitive answer, but here are some suggestions.

  • Look into the DHCP server register, there should be an entry with possibly a recognisable identifier.
  • Snif on the DHCP server network link and reconnect or restart the IPBX. Then look at the DHCP transactions.
  • Snif on the IPBX network link and reconnect the IPBX. Then look at the DHCP transactions.
  • Snif on the port of the network switch and reconnect or restart the node. Then look at the DHCP transactions.