31–40 of 40 posts
There is really so much failure in this post: crappy vendor, misunderstanding how PPP actually works (it requires no addressing at all), using "half bridge" (idiot term) instead of just using it properly. I swear people are even less informed than 20 years ago, it's very sad.
https://openwrt.org/docs/guide-user/network/wan/bridge-mode#...
There is really so much failure in this post: crappy vendor, misunderstanding how PPP actually works (it requires no addressing at all), using "half bridge" (idiot term) instead of just using it properly. I swear people are even less informed than 20 years ago, it's very sad.
Seems to be a commonly accepted term for this purpose: https://openwrt.org/docs/guide-user/network/wan/bridge-mode#...
PPPoE is pretty much only used for DSL in the US. I'm not sure about elsewhere. Xfinity and AT&T Fiber do /not/ use PPPoE. Xfinity is built on DOCSIS, and AT&T Fiber is built on XGSPON. This means neither one relies on PPPoE at the data link layer. XGSPON uses XGEM/XGTC at data link layer, DOCSIS uses MAC (same data link protocol as Ethernet). This article is making a bunch of assertions which are just patently false…
I have 4Gbit symmetric fiber over PPPoE (+ a VLAN) in NL. It's quite common here in Europe. The Unifi Cloud Gateway Fiber, handles it well though (as mentioned in the article).
A lot of people dunk on PPPoE, but it does have one redeeming feature: failover is a lot easier and faster compared to IPoE. With IPoE you often rely on vendor-proprietary mechanisms. The closest thing to a common standard is packet-triggered sessions. Normally, BNG's set up sessions using DHCP but you can rig it to do a RADIUS request for a non-DHCP packet without a known session. In this case, it will send the sour…
What's wrong with using BFD for IP over Ethernet? You can put whatever control plane you want on top from simple static route priorities to full blown eBGP and everything inbetween.
PPPoE is pretty much only used for DSL in the US. I'm not sure about elsewhere. Xfinity and AT&T Fiber do /not/ use PPPoE. Xfinity is built on DOCSIS, and AT&T Fiber is built on XGSPON. This means neither one relies on PPPoE at the data link layer. XGSPON uses XGEM/XGTC at data link layer, DOCSIS uses MAC (same data link protocol as Ethernet). This article is making a bunch of assertions which are just patently false…
VDSL2 is using PPPoE here in europe often. Havent seen it used on PON based internet connections though
> Even in 2026, a huge number of ISPs still rely on PPPoE, including Bell Canada, AT&T Fiber, and Xfinity in the US, along with the vast majority of ISPs in Europe, Asia, and China. Comcast (Xfinity) does not use PPPoE.
An approximate, if imperfect, predictor of PPPoE usage is "did this organization previously deliver packets over twisted pair, especially DSL?". Xfinity/Comcast historically (and currently) delivered packets over coaxial cable -> no PPPoE. All the telcos delivered over DSL -> mostly PPPoE.
> Even in 2026, a huge number of ISPs still rely on PPPoE, including Bell Canada, AT&T Fiber, and Xfinity in the US, along with the vast majority of ISPs in Europe, Asia, and China. Comcast (Xfinity) does not use PPPoE.
An approximate, if imperfect, predictor of PPPoE usage is "did this organization previously deliver packets over twisted pair, especially DSL?". Xfinity/Comcast historically (and currently) delivered packets over coaxial cable -> no PPPoE. All the telcos delivered over DSL -> mostly PPPoE.
Is there any more information about this? I'm curious what behavior they exhibit / what issues there are
In my specific situation I was able to use this WAS-110 to get full speed PPPoE from my fiber provider (Bell). https://pon.wiki/guides/masquerade-as-the-bce-inc-giga-hub-2...
As I noted in my other comment, AT&T Fiber doesn't actually using PPPoE, but anyway, glad to see you linked pon.wiki here. I am running XGSPON ONU stick (ONU on SFP) with the community firmware for my AT&T Fiber connection, getting native 5gbit throughput without the AT&T device in the path. pon.wiki is an amazing resource.
Earlier quoted context omitted.
Some of AT&T's fiber acquisitions still use PPPoE including CenturyLink and Quantum's fiber offerings (acquired from Lumen).
Quantum Fiber doesn't use PPPoE, it uses IPoE w/ VLAN tagging using VLAN 201, which is a common approach for legacy GPON networks. CenturyLink Fiber does use PPPoE, but I believe only the authentication portion of PPPoE, but I have never had CenturyLink Fiber so I can't say for certain.
FWIW, I have Quantum fiber (from post-CenturyLink but Pre-AT&T vintage) and it uses PPPoE.