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Dear Sylvain LG, We are sorry for misinforming, ATC (AT Command) mode is used to config device via Serial, not via TCP. Therefore, in order to change CSE-H21 configuration via Internet, there is only one way: changing configuration via ezManager software. Telnet commands on CSE-H21 are only for checking status of device, not for configuration. There is no command to activate DHCP via telnet. If you need any further information, please feel free to ask us! > Anonymous wrote: > ------------------------------------ > > I do not understand what kind of connection is relevant to send AT Command. > > Can it be sent through TCP connection? If yes, on which port? > > Thany you > > > > Sollae Systems wrote: > > ------------------------------------ > > Dear Sylvain LG, > > > > Thank you for your interest in our product. > > > > It'ss impossible to activate DHCP with a telnet command on a CSE-H21. > > > > However, we have an alternative way. By seting device to ATC (AT Command) mode, you can change the setting parameters, including DHCP, via Internet. > > > > For more detail about ATC mode, please refer to page 31 if User Manual https://www.eztcp.com/en/download/pds_files/cseh21en.pdf > > > > AT command for activating DHCP is: at+pdc=1 (ON)<CR> > > > > If you need any further support, please feel free to comment here > > > > > Sylvain LG wrote: > > > ------------------------------------ > > > Hello, > > > > > > is there a way to activate DHCP with a telnet command on a CSE-H21? > > > > > > Regards, > > > > > > Sylvain
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