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Difference between revisions of "OpenWRT PPPoE"
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The first most important item to remember is that | The first most important item to remember when a router relies on internet access via DSL with PPPoE, is that IP Frames are limited to 1492 Bytes (not the standard 1500) | ||
OpenWRT claims that the "MSS (Maximum Segment Size) Clamping" Feature (''option mtu_fix '1'<nowiki/>'' in the /etc/config/firewall file) takes care of this ( | OpenWRT claims that the "MSS (Maximum Segment Size) Clamping" Feature (''option mtu_fix '1'<nowiki/>'' in the /etc/config/firewall file) takes care of this (the setting even gets added automatically when configuring a PPPoE WAN Interface), but in reality it is safer to manually configure it: ''option mtu 'WhatEverValue''' (1492 in the case of PPPoE) in the /etc/config/network file. | ||
https://en.wikipedia.org/wiki/Point-to-Point_Protocol_over_Ethernet | https://en.wikipedia.org/wiki/Point-to-Point_Protocol_over_Ethernet | ||
https://en.wikipedia.org/wiki/Path_MTU_Discovery | https://en.wikipedia.org/wiki/Path_MTU_Discovery | ||