Changing MTU size

Bennett, Joe remailer at ka3nam.com
Wed Sep 22 21:05:00 CDT 2004


While poking and proding around I've found that my particular linksys router 
is very sensitive to mtu size. I'm running Suse 9.0 which defaults the mtu 
size to 1500 (as I would assume all other do)upon reboot. Since I'm a slave 
to sbc dsl, and am living with the 8 byte overhead of PPPOE, my mtu size 
needs to be 1492. If I reboot the machine, the mtu reverts back to the 
default and becomes basically useless on the net until I open up a terminal 
and perform an /sbin/ifconfig eth0 mtu 1492. After that, all is well with the 
world.

Now, on with the question. What is the best way to automate the mtu change to 
1492 or is there a way to just change the default???? I'm attempting to limit 
my maintenance on this machine in the event that someone reboots it, or the 
UPS runs to the end of its rope when the power fails....

Ideas???



-Joe




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