I am trying to setup a Sierra Wireless Aircard 750. When running through minicom, I appear to get a satisfactory PPP connection. However, when connecting via PPPD, I get this, after depiction of the AT and OK messages by chat -V: Using interface PPP0 Connect: PPP0 <--> /dev/ttyS2 Appear to have received our own echo reply! Remote message: TTP Com PPP - password verified ok Kernel does not support PPP filtering Modem hangup Connection terminated. PPPD version 2.4.1, running under kernel 2.4.17. Yes, I know its old, but the laptop has no other kind of net access, I have no PCMCIA network cards which are linux supported, and therefore would find it highly difficult to upgrade the kernel at this time. (Using CDs as the Debian package medium) Of course, assuming it is not a catch 22, upgrading the kernel will be my first act, after getting net access via the aircard. Any thoughts on how to resolve this? Thanks Luke