![]() ![]() It is not possible to cover all possible variations, but these steps are essentially uniform across the board. This step will vary depending or your brand or model of router. Hardware: select the relevant interface.Open the Interfaces & routing | Interfaces | Interfaces Tab.The hardware interface you use on the UTM can then be specified as the DSL (PPPoE) interface. You will still be connecting an Ethernet cable between Sophos UTM and your DSL router. Configuring a DSL PPPoE Interface on Sophos UTM This provides a significant increase in security, as most manufactured routers themselves are typically not updated, patched or fixed when vulnerabilities are found. Managing your connection centrally from the UTM allows you to disable unnecessary functionality on the DSL router. It also means that Sophos UTM is your edge router instead of your DSL modem. Sophos UTM also allows you to specify additional PPPoE settings that might not be available on your router, such as setting Maximum Transmission Unit (MTU) size, VLAN tagging, and daily reconnects, which might be required by your ISP or Dynamic DNS provider. Effectively, the router becomes nothing more than a connection method. This mean that someone connecting to the router directly would not be able to get an Internet connection. To allow Sophos UTM to handle the PPPoE, the DSL router must be changed to bridge mode. So why bother? It comes down to management, control and security. After all, you don’t have to - you can simply plug the router into the UTM. Since most DSL routers can handle the PPPoE portion of a connection, you might be wondering why would you want to configure it on Sophos UTM. ![]() Since the UTM can handle the PPPoE protocol, but cannot provide the physical connection, you need a device that supplies the necessary connection hardware. This hardware is in all DSL routers or “modems”. ![]() The hardware that does this needs to be configured with the correct setting such as the Multiplexing Type (normally LLC), VCI and VPI settings. Unfortunately, Sophos UTM devices lack the physical hardware (such as dial-up hardware or "modem" components) that handles the connection between the user and the ISP over the Public Switched Telephony (PSTN) or DSL network. You can configure Sophos UTM to do this for you. PPPoE can therefore be configured on Ethernet devices such as Windows or Mac OS X machines, or Ethernet routers or switches. PPPoE is an encapsulation technology for ethernet frames. Think of it as a connection bridge between your network and the ISP’s network. PPP or dial-up connections can make use of DSL lines, and PPPoE allows that connection to be used by local and remote Ethernet devices. Point-to-Point Protocol over Ethernet (PPPoE) is a data link protocol used by most Internet Service Providers (ISP) to connect Ethernet devices over a point-to-point connection. This article describes how to establish a PPPoE connection with your ISP through a DSL connection on the Sophos UTM. Sophos UTM supports the use of one or more dial-up DSL connections. Sophos UTM (Unified Threat Management) is a complete security product that scales from home and small office all the way up to enterprise, supporting features such as Dynamic DNS Registration, Uplink Balancing, QoS on asymmetric line speeds, and Multipath Routing.
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