I am planning to bridge two or more LANs behind dial-up linux routers
together, in a star-like setup.
my router server another router
LAN -- eth0 tap0 ------- tap0 tap1 ---------- tap0 eth0 -- LAN
\br0/ \br0/ \br0/
The tunnel UDP connections go over PPPoE(th1) links (DSL), the server is
located somewhere on the internet (high bandwidth).
Do I have to set the mtu to 1300 for each and every participating
interface, i.e. eth0, br0 and tap0 on the routers and tapx and br0 on
the server? And also on all machines sitting in the various LANs? That
would be a lot of administrative effort.
Currently, I set up the bridges with eth0 and mtu at boot time and execute
ifconfig $1 mtu $2 up
brctl addif br0 $1
in the up-scripts.
What is the most elegant solution here?
I am not on the list, so please CC.
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