MTU of 1492 or 1500 for FTTC?

[gyrester]

I'm confused.

On this forum it says to use a MTU of 1492 for VDSL. Some other forums say to use 1500 for a combined VDSL modem/router.

Which should I be using?

Thanks!

-- gyre --

[Eddman]

1492 as you have an an extra overhead on ppoe.
If you have problems loading https sites try lower.
say 1450

Phillip

[gyrester]

Thanks. 1492 seems to be working fine for me.

One of the reasons I asked was that I've just moved from a 2 box setup that used a draytek 2920 router and a 8800nl in bridge mode, to just using a 8800nl alone, and wondered if the MTU could be raised as both the router and modem were now combined.

-- gyre --

[gyrester]

Turns out that the question is moot. The gui wouldn't allow a MTU greater than 1492 to be entered

-- gyre --