![]() RFC 2132 defines option 66.ĭifference between Option 150 and Option 66 Option 66 is an open standard juniper supports it. Like option 150, option 66 is used to specify the Name of the TFTP server. The IEEE standard that matches with this requirement is Option 66. When a Cisco IP Phone starts, if it does not have both the IP address and TFTP server IP address pre-configured, it sends a request with option 150 to the DHCP server to obtain this information.ĭHCP Option 150 is Cisco proprietary. What is Cisco DHCP 150? Cisco IP Phones download their configuration from a TFTP server. ![]() ![]() ![]() Devices also require access to a TFTP server that contains device configuration name files (.cnf file format), which enables the device to communicate with Cisco Call Manager. Option 66 is an IEEE standard.įor Cisco phones IP addresses can be assigned manually or by using DHCP. Here we will provide an understanding for configuring option 150 and to use option 66 for EX Switches. ![]()
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