What ports does PXE use to communicate?
Intel documentation states that the following ports will be used for version 2.1 of PXE:
- DHCP: Ports 67–68
- MTFTP: Port 69
- Extended DHCP PXE request: Port 4011
For further information, see the following Intel PXE specification document: ftp://download.intel.com/labs/manage/wfm/download/pxespec.pdf