arun b wrote: > Ok, > as you said i can verify all compression types on PPPoE test... > So i have pppoe-server available at my pc, if you have come across > related server configuration for this .... pls do know me. > and running PPPoA - test running is not just easy to me as > unavailability of the device. I don't know what you're asking about, but pppd generally enables all available compression modes by default (regardless of the underlying communication mechanism), and will disable a compression mode either if the peer disagrees with the request or if you specify one of the documented options to turn off that mode (or to turn off compression completely). In other words, if your "server" is actually pppd, then there's nothing that you need to do to enable compression. If it's something other than pppd, then this might not be the right mailing list. You should consult your server's documentation to find out what features it offers. As for selectively turning off available compression types in pppd, I still urge you to read the pppd man page. It's pretty important. For data compression options, you'll find the following: noccp, bsdcomp, nobsdcomp, deflate, nodeflate, predictor1, nopredictor1 For header compression (again, _not_ data compression), you'll find: noaccomp, novj, novjccomp, vj-max-slots There are also two that are sort of special -- mpshortseq and nompshortseq -- that have to do with header compression when using MP. You haven't mentioned MP yet, so I'll assume you're not using it. The really short answer is this: PPP negotiates for everything. If both sides support something, then, great, it'll be enabled. If either or both sides don't support something, then it won't be enabled. That's pretty much the whole story. -- 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