Thanks Andrew and Dario, the problem is solved: In /etc/sysconfig/network-scripts, there are 2 links 'ifup' and ifdown. Editing ifup, there is a line specifying the options for pump. Adding the no-dns option there does the trick. This is a snippet of the ifup file, with the option added: if [ -n "${DYNCONFIG}" ]; then PUMPARGS="--no-dns" DHCPCDARGS= Gerardo Searching for the best free email? Try MetaCrawler Mail, from the #1 metasearch service on the Web, http://www.metacrawler.com - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html