Hello, when computing the PPPoE channel MTU, we have to subtract two bytes, as ppp_mp_explode() expects the channel MTU to exclude the size of the PPP protocol field, which is correct according to RFC 1661. See patch 1 for details. Best regards, Christoph Christoph Schulz (1): net: pppoe: use correct channel MTU when using Multilink PPP drivers/net/ppp/pppoe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html