There is an optional package called NODEUPD which can be used to do that. However it requires human intervention to set things up, and the process is not simple (you have to subscribe LISTSERV to a bunch of files from NETSERV). In addition, LISTSERV must own enough disk space for 2 copies of BITEARN NODES. Finally, this package is very old and all the functions will not work 'as is'; the very low level of interest did not warrant updating it when GENROUTS became available. Eric