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21.7 Legacy Series / Re: I cant work out how everyone else managed to get mtu of 1500 working on pppoe
« on: November 25, 2021, 08:55:02 am »
Don't know if it helps you but my PPPoE connection only started working when I applied mss clamping.
So setting my MTU on the physical interface to 1508, so the PPPoE tunnel gets an MTU of 1500 (according to RFC 4638) and applying MSS clamping 1448 made everything work great. Dropped CPU load as well.
So setting my MTU on the physical interface to 1508, so the PPPoE tunnel gets an MTU of 1500 (according to RFC 4638) and applying MSS clamping 1448 made everything work great. Dropped CPU load as well.