Thank i understand... i in these case i put manually ip of unitThis is normal. Note that on the DHCP page, you are retrieving the MAC, while on the port forward you are retrieving the IP. An offline client does NOT have an IP as IPs are dynamic, so there's no way for the port forward page to know what IP to put in that field for any offline client. MACs however are static information, and can therefore be retrieved for offline clients.
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