http://www.realvnc.com/products/enterprise/4.1/ipv6.html IPv6 support in VNC Server E4.1.7/P4.1.2 VNC Server E4.1.7 & P4.1.2 are fully IPv6-aware, but is shipped with IPv6 support disabled by default, for security reasons. IPv6 can be enabled by setting "InTransports=IPv6,IPv4" (the default being IPv4 only), either on the command-line when starting vncserver under Unix Ok. we have vnc-server-4.1.2-9.el5.i386.rpm, so it SHOULD support IPv6. Don't know how to add a setting to the command-line, as I rund VNCserver via the service command, but I added it to /etc/sysconfig/vncservers: InTransports="IPv6" (note I also tried without the quotes) and netstat -na|grep 5902 shows vncserver only running on IPv4 and I can only connect to it via IPv4. So what am I missing?????