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pxe_in_the_modem_via_dhcp [2017/11/19 19:21] (current)
admin created
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 +<​blockquote>​In computing, the Preboot eXecution Environment (PXE, sometimes pronounced as pixie[1]) specification describes a standardized client-server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients. On the client side it requires only a PXE-capable network interface controller (NIC), and uses a small set of industry-standard network protocols such as DHCP and TFTP..<​cite>​Wikipedia</​cite></​blockquote>​
 +== Firmware of the modems ==
 +The firmware of the modem contain the DHCP responsive of the IP attribution,​ DNS server. But this DHCP server can define a image PXE. Combining with a TFTP server, the modem can boot an Operating System or a software (**include malware**).
 +== OLT ==
 +The OLTs are control and central point to do far communication like GPON used into fiber to home (FTTH). This OLT can download the firmware, edit it and re-upload the edited firmware to do the previously mentioned.
 +== Tips ==
 +  * **Disable PXE boot**
 +  * For the critical zone
 +    * Take care of your ISP
 +    * Disable DHCP and enable static IP
pxe_in_the_modem_via_dhcp.txt ยท Last modified: 2017/11/19 19:21 by admin