Matteo Balduzzi wrote: My understanding of vlans is not that much - I know we have them too and they seem to work ok. Basically if I understand you correctly you have a vlan capable network card (or support in yoru kernel or something). Question 1: Do you have an IP on each of the vlans you would like to cast to? Question 2: Is it really needed that you be on the same vlan? I thought udpcast can make use of multicasting - which would in fact be able to go across routers, but the routers need to support multicast. Perhaps the clients are answering to the local broadcast address which the server then won't pick up (I've always casted on the same vlan so I'm not too clued up with the intricasies of the udpcast protocol) since it's on a different vlan? Jaco -- _____ _ _ |_ _|___ ___ | |__ | |_ ___ __ _ _ __ ___ | | / _ \ / __|| '_ \ | __|/ _ \ / _` || '_ ` _ \ | || __/| (__ | | | || |_| __/| (_| || | | | | | |_| \___| \___||_| |_| \__|\___| \__,_||_| |_| |_| Jaco Kroon Department of Computer Science Education Law Building 4-33 University of Pretoria http://www.cs.up.ac.za/ This message and attachments are subject to a disclaimer. Please refer to www.it.up.ac.za/documentation/governance/disclaimer/ for full details. Hierdie boodskap en aanhangsels is aan 'n vrywaringsklousule onderhewig. Volledige besonderhede is by www.it.up.ac.za/documentation/governance/disclaimer/ beskikbaar.