MTU detection is the easiest one. Sucks for people with ISPs that don't do 1500 bytes but those are rare.

joecool1029 a day ago | parent | next [-]

> but those are rare.

yeah sure, if you ignore the existence of literally every mobile isp.

xiconfjs a day ago | parent | prev | next [-]

Isn‘t sub-1500 bytes the norm for residential internet access? (DOCSIS and DSL with PPPoE are the most common access protocols here in Germany)

zinekeller a day ago | parent | prev | next [-]

looks at Japan, UK (OpenReach), and a lot of other places still using PPPoE (on fiber!) for complicated reasons

	▲	cbzbc a day ago \| parent \| next [-]
		Some of those (including many providers on Openreach) will support mini-jumbo frames that allow an MTU of 1500 inside pppoe.
	▲	a day ago \| parent \| prev [-]
		[deleted]

Hard disagree... there are still a vast many providers around the world doing < 1500, such as PPPoE DSL.