I know nothing that would prevent IPC from working between a pppd plugin and another program. IPC shmget technique needs to have the same keys, and the same process UID and GID. Check that. Use ipcs to view the IPC shared memory segments created. -- James Cameron http://quozl.netrek.org/ HP Open Source, Volunteer http://opensource.hp.com/ PPTP Client Project, Release Engineer http://pptpclient.sourceforge.net/ -- 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