Solutions View all. Support View all. Products Solutions Support. Partners View all. About Us View all. About Us. Enabling the PPPoE relay function 2. Configuring PPPoE relay trusted ports 3. Enabling an interface to strip the vendor-specific tags of the PPPoE server-side packets 4. Procedure 1. Restrictions and guidelines This command is not supported on Layer 2 aggregation group member ports. Restrictions and guidelines This feature takes effect only on packets received on PPPoE relay trusted ports.
Table 1 Vendor-specific tag processing policy on the PPPoE relay Whether the received packets carry the vendor-specific tag Vendor-specific tag processing policy Processing for packets on the PPPoE relay The received packets carry vendor-specific tag Drop Strips the vendor-specific tag and then forwards the packets.
Keep Keeps the vendor-specific tag unchanged and forwards the packets. Replace Pads the vendor-specific tag in the configured format, replaces the original vendor-specific tag with the new vendor-specific tag, and forwards the packets. The received packets do not carry vendor-specific tag Drop Directly forwards the packets. Keep Directly forwards the packets.
Replace Pads the vendor-specific tag in the configured format, adds the new vendor-specific tag to the packets, and forwards the packets.
Restrictions and guidelines This feature can be configured both in system view and in interface view. Display and maintenance commands for PPPoE relay Execute display commands in any view and reset commands in user view.
An IP address is required to gain a connection to the Internet. Currently it has not been endorsed or accepted by any relevant Internet standards bodies. The new firmware is now available for download.
It allows your ISP to use their existing network configuration with newer broadband technologies. The new firmware available for download, supports PPPoE. It effectively assumes that individual client machines are connecting to the Internet autonomously. Some resulting potential problems with Home Networking are as follows: Difficult Local Configuration. Each client that connects may get an IP address in a separate subnet. For two computers in separate subnets to communicate a router is required.
Status Draft. Cancel Save Edit Close. Missing Information. Inaccurate Information. Cancel Submit. New Folder Cancel OK. Last Updated Note Tags. Click on the file types below to dowload the content in that format. OK Cancel Yes No. Enables privileged EXEC mode. Enter your password if prompted. Configures the subscriber profile name and enters subscriber profile configuration mode. Specifies which virtual template will be used to clone virtual access interfaces.
Example: Router config clear pppoe relay context. L2TP Tunnel Switching feature module. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.
I'm wondering what benefits there is to using "bridged" mode on a modem. If your router can handle PPPoE, is there any reason to bridge it over to the router, rather than having it run on the modem? You don't want both devices doing NAT if you can avoid it. That's called "double NAT" and tends to cause problems for people who don't know what they're doing and even some who do.
Depending on how many IP addresses the DHCP server on the modem handles, you could technically connect a switch to the ethernet port and the modem will hand out private IP addresses to the devices that are connected and you wouldn't need a router. By default, a router would acquire an IP address from the modem private or public and would perform NAT and isolate the devices from the "outside network". There would be two layers of private networks in this instance and is recognized by many devices as "Double NAT" which may cause issues with traffic trying to find its way in and out of your network and possibly increase latency.
Configure your router to not hand out DHCP addresses and pass the IP addresses handed from the modem to the clients on the network. You must keep in mind that many modems have a set amount of devices that can receive IP addresses from its internal DHCP server. Configure your router to handle PPPoE. The router would then have the public IP address assigned to the WAN port and would have one layer of NAT between the internet and the client computers on your network.
I normally keep running PPPoE on the modem to ensure a tiny bit lesser load on my router and let the modem do the job it was specifically optimized to do best. However, I sometimes switch it to the modem for two reasons:. In my case the modem's lights are hiding or set off to one side.
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