weird ppp error

[sticky_chicken]

I stumbled across this error today in my /var/log/messages:

pppoe[8739]: Bad TCP checksum 2a18

I've never seen it before and haven't been able to find anything on google about it either.

Has anyone else seen it before?

[Incabulos]

The first step to finding what this means is to figure out if its a kernel or application error.. check the dmesg output to check for issues with the kernel, and the forums / mailing list archives of the pppoe implementation ( there are a number of different ones, if on linux yours may be rp-pppoe http://www.roaringpenguin.com/penguin/open_source_rp-pppoe.php ) for application errors.