Hi, dhclient is out-of-date and the last update to the package was from September last year. In order to fix this bug: FS#15515 - [dhclient] DHCP Stack Overflow in 'dhclient' script_write_params() (http://bugs.archlinux.org/task/15515) I get some troubles. At the moment our package is at 3.0.6, but ISC doesn't provide a patch for the above stack overflow, instead they adivse you to upgrade to 4.1.0p1, 4.0.1p1, or 3.1.2p1. I have tested 3.1.2p1 and our own huge patch (http://repos.archlinux.org/viewvc.cgi/dhclient/repos/extra-x86_64/arch-nm.pa...) doesn't apply anymore. Nevertheless I have absolute no clue what this patch is doing completely. I have seen that it adds an additional option on command line "-x", but I don't know what it's doing. The other two patches from us are more or less needless with the new versions. This (http://repos.archlinux.org/viewvc.cgi/dhclient/repos/extra-x86_64/fix-broken...) was fixed in the new version from ISC and the other patch changes: - ifconfig $interface inet 0 down + ifconfig $interface inet 0 in the scripts and I really don't know why. The patch is called "fix-mac80211-wireless". Nevertheless of the patch problems above, I have tried the newest version 4.1.0p1. It's clear that our patches don't apply anymore, but I think they aren't necessary anymore. Like in 3.1.2p1 the last two patches are needless and the "arch-nm.patch" doesn't apply and I have not enough knowledge about the dhclient source code here. As I said, I have test the 4.1.0p1 and it compiles fine, BUT only if I disable DHCPv6. I haven't tried the package yet, but I'm not sure if we should deliver it without DHCPv6. Otherwise I don't know how many servers uses DHCPv6 at the moment or will use it. Should we provide the 4.1.0p1 package, but without DHCPv6 support? I have looked at some other distros, they have enabled DHCPv6 and it seems that it compiles. But I don't know if they have the latest toolchain. Your advice please...need some input here. Daniel