03-17-2017 06:07 PM
I have an SRX300 and with DHCP configured. When I connect my laptop to the SRX, it happily receives an IP address with all the options I have associated with the config. If I connect an IP phone, it will not get an address. I have tried this with 2 different phones from 2 different manufactures with the same result. The same phones connected to a different network and router receive an IP address.
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03-17-2017 08:40 PM
I suspect IP Phones are expecting certain DHCP options from the server like Option 66 or Option 120 etc.
You can check the Manual of IP Phones you have tried so far to know such requirements.
03-18-2017 08:01 AM
if you are already using jdhcp then please enable dhcp traceoptions on srx.
can you collect "show dhcp server statistics" during problem state
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