On 4/21/2010 5:17 AM, Milan P. Stanic wrote: > On Wed, 2010-04-21 at 10:10, Jan Just Keijser wrote: >> the second problem is: if you want to add CRC32 support then you'd >> have to get it into the linux kernel . that will take *quite* some >> time (unless you can live with patched linux kernels). > > It wouldn't be so hard to push it to the kernel because Paul Mackerras > is/was on this list and he is the ppp driver maintainer, I hope ;) It's a little tricky to implement the feature *well*. You have to be able to withstand your peer restarting -- which means that while you're in CRC-32 mode, you have to be able to accept and process an LCP Configure-Request frame with a CRC-16 FCS on it -- and you need to be tolerant of peers that are unable to handle switching -- which means sending LCP Configure-Request messages with more than one FCS. -- James Carlson 42.703N 71.076W <carlsonj@xxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html