Even if a bridge is empty it seems impossible to add pppoe to it. This

doesn't change if the first bridge member has an MTU identical to that

of the pppoe interface (thank you to Martin  Reindl for a patch

enabling  mtu changes on  Sun quad  ethernet). For my own, and anyone

else's reference, the bridge's own MTU is hardcoded to ETHERMTU (1500).
Now, I can go through the source to if_bridge.c and find the definitive

answer, but I thought I'd ask here in case anyone had an immediate

answer, even if delving into the depths of OpenBSD is new knowledge for

me. The bridge and brconfig man pages aren't illuminating in this regard.
Alternatively, it would be good to know if I'm doing something foolish,

if I find a way to get the source to accept pppoe interfaces - could

there be a hidden side effect?
PK