Technical Tip: Configuring DHCP Options (176 and 242) for IP Phone

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Description	This article describes how to configure DHCP Options (176 and 242) for IP Phone.
Scope	FortiGate.
Solution	Configuration using GUI: Go to Network -> Interfaces. Edit the interface where DHCP is enabled and where the IP Phones are connected. Expand Advanced. Below Additional DHCP Options select Create New. Configure DHCP Option 176  and select OK. Do the same to DHCP Option 242. Select OK to commit changes on the interface. Configuration using CLI: config system dhcp server     edit <ID>         config options             edit 0                 set code 176                 set type string                 set value "MCIPADD=192.168.15.35,MCPORT=1719,TFTPSRVR=192.168.15.35,TFTPDIR=,L2Q=1,L2QVLAN=0,VLANTEST=0"             next             edit 0                 set code 242                 set type string                 set value "MCIPADD=192.168.1.86,MCPORT=1719,HTTPSRVR=192.168.1.86,VLANTEST=0"             next         end     next end For the details regarding the DHCP options 176 and 242, refer to: Technical Note: Configuring DHCP Options for Avaya IP Phones.