I have had issues with Synaptic and proxy support in the past, but it works fine in 6.06. Make sure that you've got it configure properly. And yes, you will need to run that proxy command each time you using apt- get/aptitude through the command line, unfortunately.
Now that this part is resolved, it'd be nice to get the original issue fixed, that is the 255.255.255.255 + dhclient disagreeing. -- network in unreachable with netmask 255.255.255.255 https://launchpad.net/bugs/50591 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
