To vent my today's frustrations…
@erindesu thank fuck someone said it

@erindesu

I think the point of PPPoE is so the ISP can tell which packets belong to which subscriber when the medium is shared (PON, fiber-to-the-node, DSL, etc).

Although my current ISP is somehow providing me with fiber service that uses plain old DHCP and Ethernet. Which I love and cherish very much. But I'm sure it'll be PPPoE o'clock again if I ever move or if the ONT ever needs replacement.

@argv_minus_one if you want to learn more about it, I really recommend this DENOG conference about PPPoE vs IPoE for ISPs ​
https://youtu.be/36TgDD-g-3k
@erindesu
DENOG17 - PPPoE vs IPoE: A Practical Guide for ISPs

YouTube

@louis

Honestly, PPPoE is too frustrating and inelegant for me to be curious about it. 😖

Just tell me this: is it realistic to hope that I'll ever get IPoE service from another ISP ever again, or should I be resigned to losing it eventually?

@erindesu

@argv_minus_one @louis my old ISP did not do any PPPoE. IPv4 was static, IPv6 was plain DHCPv6-PD.
@argv_minus_one idk to be honest ​ it really depends on what the ISP wants to achieve and their architecture
I've seen ISPs (in my country at least) phase-out PPPoE in favor of IPoE, keeping the former as part of their legacy infra. Two major french ISPs are now using IPoE with DHCP (for both v4 and v6), and I believe the rest of them are as well, but I can't say for sure without digging documentation
@erindesu
@louis @argv_minus_one @erindesu Yes! This! PPPoE definitly has a place, and if the ISP implements rfc4638 correctly, the major problem of mtu1492 is already gone.

@argv_minus_one the funny part is that our current ISP (it's not their choice to use PPPoE, from what i heard of them they don't like it either) the username and password are uvt.

At least PON has it's own mechanisms to identify subscriber.

@argv_minus_one @erindesu 1500 MTU within PPPoE is standardized and possible, just needs turning on.
@argv_minus_one @erindesu My fiber connection is just Ethernet, and so were my VDSL connection (back in 2007) and cable before that. Never had to suffer PPPoE at home.
@erindesu you can have MTU 1540 with PPPoE as of... *checks notes* last week https://github.com/ppp-project/ppp/commit/f691c224e12ee13a1b317a1838d150f1ffef14a1
Remove MRU limit on PPPoE (#573) · ppp-project/ppp@f691c22

Fixes #331 Signed-off-by: Mateusz Poliwczak <[email protected]>

GitHub
@erindesu Ah, yes, MTU 1492, or as it is better known: https://en.wikipedia.org/wiki/1492:_Conquest_of_Paradise
1492: Conquest of Paradise - Wikipedia

@erindesu I wonder what the global collective extra energy usage is due to PPPoE!
@erindesu I'm with you, but also I'm plagued with DOCSIS currently.
@wonka oh no DOCSIS. I would rather pick VDSL than that.