MTU 1640

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Hi,

Im running M0n0wall 1.8.1. Im using PPPoE to connect to my ISP. I had some
trouble with MTU size, then i saw my WAN MUT is set to 1460:

$ ifconfig
~
ngwan0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric 0
mtu 1460
~

I went to Interfaces > WAN and set the MTU to 1492 (which should be the
Maximum possible on PPPoE links). The MTU setting is visible on the UI and
in the config file also after a reboot.


$ cat /var/etc/mpd.conf
startup:

pppoe:
create bundle static B1
~
set link mtu 1492
~

I disconnected and reconected my WAN interface, I did a reboot of my
m0n0wall. But the MTU doesn`t get changed. It remains on 1460.

1. Does anybody see the same issue?

2. Someon know about the value 1460? I couldn't find anything about that.


Thanks in advance,

Jakob

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